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New USA Made Self-Drilling Screws Now Available

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Avoid the Tariffs, Shop High-Quality USA Made Self-Drilling Screws

With the recent rise in tariffs, there is no better time than now to buy American made fasteners. Melted & poured in the USA, this new lineup of self-drilling screws is American through and through. Manufactured under the ISO 9001:2015 standards to be sure we consistently provide high-quality drill screws every time. These self-drilling screws are fully compliant to the Fastener Quality Act, maintaining complete lot control and traceability.

American Made Self-Drilling Screwslogo_MadeUSA

American made self-drilling screws are a staple of any construction drill screw program. Featuring TanCor Corrosion Resistant Coating, which provides 1,000 hours of salt spray protection. These self-drilling screws are heat-treated in strict accordance with SAE J78 industry standard. It is NOT recommended to use these drill screws in critical applications where dissimilar metals (aluminum) and exposure to moisture are involved. Available in a few different options:

Read on to learn more about each line of American Made Self-Drilling Screws.

New American Made Self-Drilling Screw Lineup

Standard Self-Drilling Screwbox_StandardSelfDrillingScrews_06

  • Staples of any construction job site
  • Option in with Zinc Plating (#10-16 x 3/4″)
  • All others feature TanCor Corrosion Resistant Coating
  • Provides 1000 hours of salt spray protection
  • #10, #12 & 1/4″ diameters
  • 3/4″ – 6″ lengths
  • Made in the USA

Standard Self-Drilling Screws with Bonded Sealing Washersbox_StandardSelfDrillingScrewsBW_06

  • Applications requiring a weather-tight seal
  • Galvanized bonded sealing washers
  • Option in with Zinc Plating (#10-16 x 3/4″)
  • All others feature TanCor Corrosion Resistant Coating
  • Provides 1000 hours of salt spray protection
  • #10, #12 & 1/4″ diameters
  • 3/4″ – 4″ lengths
  • Made in the USA

Heavy Duty Drilling Self-Drilling Screwsbox_HeavyDrillSelfDrillingScrews_06

  • Thick metal applications
  • For steel up to 1/2″ thick
  • Feature TanCor Corrosion Resistant Coating
  • Provides 1000 hours of salt spray protection
  • #4, #4.5 & #5 point sizes
  • #12 & 1/4″ diameters
  • 7/8″ – 6″ lengths
  • Made in the USA

Heavy Duty Drilling Self-Drilling Screws with Bonded Sealing Washersbox_HeavyDrillSelfDrillingScrewsBW_06

  • Thick metal applications (1/2″ thick steel)
  • Applications requiring a weather-tight seal
  • Galvanized Bonded Sealing Washer
  • Feature TanCor Corrosion Resistant Coating
  • Provides 1000 hours of salt spray protection
  • #4, #4.5 & #5 point sizes
  • #12 & 1/4″ diameters
  • 7/8″ – 3″ lengths
  • Made in the USA

Coarse vs Fine Thread – What Thread Type Do I Need?

Screw Threads

Fastener Thread Styles

Have you ever been stuck trying to figure out when to use a coarse thread vs fine thread fastener? Don’t worry you aren’t alone. Most people would be surprised to learn about the significant characteristic differences between the two. Each type of threading has its own benefits that the other style lacks.  Read on to learn more about coarse vs fine thread fasteners and never choose the wrong thread type again.

  • Screw threading is a uniform ridge that is wrapped around a cylinder (straight thread) or cone (tapered thread) in the form of a helix
  • Screw threads vary in height and width, from fastener type to fastener type
  • Threads set with “wide & deep ridges” are considered a coarse thread
  • Threads set with “more narrow & shallow ridges” are considered a fine thread

What’s the Difference Between Coarse & Fine Threadsscrew threads

Coarse threaded fasteners are a great choice for most construction applications. One reason is that coarse threaded fasteners can be “roughed up” on the job site and still have the ability to work properly.  “Roughed up” meaning, their threads can be lightly damaged or the presence of dirt and other obstructions can be in the threads, the same “roughing up” could render some fine threaded fasteners useless. Coarse threaded fasteners are also more difficult to strip or cross-thread because of the wider thread style, allowing for more material between the threads.

Fine threaded fasteners are a much better choice when specific measurements are required. Fine threads feature a higher tensile strength, making them ideal for strength applications. The shallow pitch (helical angle) of fine threads makes them much less susceptible to loosening from vibration. With less material to cut to form threads, the process of tapping holes for fine threaded fasteners is much easier.

Read on to compare the features and benefits of coarse and fine threaded fasteners side by side.

Coarse vs. Fine Thread Comparison

Coarse Threads

Fine Threads

  • Stripping strengths are greater for the same length of engagement.
  • Less likely to cross-thread.
  • Quicker assembly and disassembly.
  • Tap better in a brittle material.
  • Larger thread allowances accommodate thicker plating, coatings and are therefore less likely to seize in corrosion-prone applications.
  • Less prone to stripping when fastened into lower strength materials.
  • Better fatigue resistance because of less concentration to stress at thread root radius.
  • The height of each thread is greater than the corresponding fine thread so there is more material between each thread-making flank engagement greater.
  • Less susceptible to being nicked or damaged, so they do not have to be “handled with care” as much as fine threads.
  • Coarse threads are much less likely to experience thread galling than fine threads.
  • Aerospace applications generally use coarse threads on sized 8–32 and smaller.
  • Coarse threads are used when threaded into aluminum or cast iron because the finer threads tend to strip more easily in these materials.
  • Are stronger when assembled with lower strength nut or tapped hole materials.
  • Stronger for bolt/screw/nut sizes over one inch.
  • They start more easily than fine thread, particularly in awkward positions and require less time to tighten.

 

 

 

  • Are stronger in tapped hole materials normally used in the design and significantly increase joint clamping force.
  • Allow for greater adjustment accuracy because of their smaller helix angle. Can be threaded closer to the head since thread die chamfer is a function of pitch.
  • Are better for tapping thin-walled members because tapping torque is lower for short engagement lengths.
  • Are stronger for fastener sizes one inch diameter and smaller, gaining strength advantage as size decreases.
  • Maintains joint tightness and clamping force better due to the smaller helix angle of the thread.
  • Aerospace applications generally use fine thread fasteners due to their increased strength.
  • Stronger than the corresponding coarse threaded bolts of the same hardness.
  • Stronger in both tension and shear due to having a slightly larger tensile stress area and minor diameter.
  • They have less of a tendency to loosen under vibration due to their having a smaller helix angle than coarse threads.
  • Shorter thread depth allows for threading in thin wall applications.
  • Where the length of engagement is limited, fine threads provide greater strength.
  • Their larger minor diameters develop higher torsional and transverse shear lengths.
  • Fine threads require less torque to develop equivalent bolt preloads.
  • Fine threads are more susceptible to thread galling than coarse threads.
  • Fine threads need longer thread engagements and are more prone to damage (nicking) and thread fouling.
  • They are less suitable for high-speed assembly since they are more likely to seize when being tightened.

Picking the Correct Countersink for Your Next Job

What are Countersinks Used for?champion_Countersinks

A countersink is a cutting tool that cuts a conical hole into a base material and can be used for a number of different applications. The main use of countersinks is to cut a hole to allow the head of a countersunk screw or bolt, when fastened into the hole, to sit below or flush with the surface of the base material. They are also used after drilling and tapping applications to remove any burrs that are left behind.

Why Choose Champion Countersinks?

Champion Cutting Tool manufactures a wide variety of high-speed steel countersinks designed to perform a number of different applications, each with their own advantages in certain situations. Champion’s countersinks will provide users with a chatter-free performance and smooth, fast chip removal. Countersinks can be used in hand drills, drill presses, milling machines and lathes. Widely used in the glass, window and door industry, Champion countersinks will cut through metal, plastic and wood.

*It is recommended to use BruteLube to enhance the performance and extend the tool life of Champion Countersinks*

Most Popular Countersink Styles

Zero Flute Countersinks

Zero Flute Countersink
Zero Flute Countersink

Zero flute countersinks are a cross-hole countersink, the cone-shaped cutting tools feature a cutting edge provided by a hole that goes through the side of the cone. The cutting edge is formed from the intersection of the hole and the cone. Commonly referred to as a Weldon style countersink. Zero flute countersinks are best suited for softer materials including aluminum, wood & plastic for countersinking & deburring applications. They are offered in 2 styles:

  • Piloted: Piloted countersinks are recommended for screws from 1/4″ – 1/2″ diameter
  • Pilotless: Pilotless countersinks are recommended for bolt sizes from 0.073″ – 1-15/32″ & screw sizes #4 – #10 diameters

Single Flute Countersinks

Single Flute Countersink
Single Flute Countersink

Single flute countersinks are designed for use when the hole is too small for a multi-flute countersink or when multi-flute countersinks chatter. Widely used for machine and portable work at high speeds.

Three & Four Flute Countersinks

Similar to single flute countersinks, multi-flute countersinks are designed for chatter-free performance and are mostly used in portable applications.

Combo Drill & Countersinks

Multi Flute Countersink
Multi Flute Countersink

Combo drill and countersinks are designed to produce accurate conical holes in components that require machining between centers.

How to Choose the Right Size Countersink Diameter

You will want to choose a countersink that is larger than the bolt size of the hole. Countersink diameter = 1.5 x Bolt Size Hole Diameter.

Example: 1/4″-20 Bolt – Multiple the diameter (.250) x 1.5 = 0.375. You will want to use a 3/8″ countersink.

How to Calculate Countersink RPM Speeds

Countersinking is typically performed at 1/3 of the RPM speed of drilling. You will first want to calculate the speed by using the formula below, then you will want to divide that speed by 3 to get the countersinking speed.

Formula: SFM (surface feet/minute) x 3.82 / Cutter Diameter (decimal equivalent) / 3

Material Surface Feet / Minute (SFM) Sample Calculations for 1/4” Countersink Speed (RPM)
Aluminum 200 – 250 (225 (SFM) x 3.82 / .2500) /3 = 1,146 RPM
Mild Steel 100 – 110 (115 (SFM) x 3.82 / .2500) /3 = 586 RPM
Stainless Steel 30 – 100 (65 (SFM) x 3.82 / .2500) /3 = 381 RPM

Proper Safety Precautions WILL Save Money & Lives

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Safety is a Job Everyone Needs to Take Seriously

While working at heights, it is very important to take the proper safety precautions & to use the correct fall protection equipment each and every time. No matter the size of the job, safety should never take a back seat.

Recently the U.S. Department of Labor’s Occupational Safety and Health Administration (OSHA) cited Northridge Construction Corp. for failing to provide proper fall protection & protective helmets, ensuring the structural integrity of a roof and the misuse of a ladder. The company now potentially faces $224,620 in penalties.

These potential penalties are the result of an employee suffering fatal injuries after a structure collapsed during the installation of roof panels on a shed. This unfortunate event could have easily been avoided if the proper safety precautions were taken and if the employee was provided the proper fall protection equipment.

“Fall-related fatalities are preventable if employers use required fall protection systems, such as guardrails or personal fall arrest systems. OSHA standards are legal requirements that every employer must follow to ensure workers are protected from serious injuries.” – OSHA Long Island Area Director Anthony Ciuffo.

Tanner Has the Safety Solutions & Equipment You Need

At Tanner safety on the job site is our #1 goal. We have a wide selection of safety equipment available to our customers including: fall protection, tool drop protection, head protection, hand protection, respiratory protection & much more. Please feel free to reach out to us if you need help finding the proper fall protection & safety equipment for your next job. We are also happy to help you with any other safety-related questions you may have – Phone: 800-456-2658 | Email: websales@tannerbolt.com.

Fall Protection Training Available to Our Customers

Tanner & 3M Fall Protection offer fall safety and rescue training programs at your job site. Each training program is specially tailored to your job site and workers. The hands-on training scenarios identify fall protection hazards in and around your facility. By training your employees in their normal work environment, we ensure that the issues discussed are immediately applicable for proper OSHA fall protection training. Flexibility and cost savings are an added bonus when you are considering on-site training. You provide the students and the location, we provide the equipment, experienced instructors and fall protection certification. Please reach out to one of our Tanner customer service reps for more information – Phone: 800-456-2658 | Email: websales@tannerbolt.com.

Marine Grade 316 (A4) Stainless Steel Bi-Metal Self-Drilling Screws

EJOT® SUPER-SAPHIR JT6 Self-Drilling Screws

EJOT® SUPER-SAPHIR JT6 self-drilling screws are made from Marine Grade 316 Stainless Steel Bi-Metal. They feature a screw head and threads that are made of 316 stainless steel, providing exceptional corrosion protection and superior ductility. SUPER-SAPHIR JT6 self-drilling screws have a classic drill point and are designed to drill, form the thread and fasten components in one work step. The drill point is made of hardened carbon steel that is welded to the body. This allows JT6 fasteners to drill and tap steel up to 1/2 thick.  EJOT® SUPER-SAPHIR JT6 self-drilling screws are completed by an optional pre-assembled sealing washer.

EJOT® SUPER-SAPHIR Self-Drilling Screws Features

  • High-quality grade 316 stainless steel, ISO group A4, DIN 1.4401
  • High-quality case hardened carbon steel drill point to DIN standard 10666
  • Available with pre-assembled stainless steel EPDM vulcanized sealing washer for a safe seal every time
  • Free spin zone (near the head of the screw) for a reliable positive connection (only side lap screws)
  • Drill point with small dead center prevents misalignment on the component surface

EJOT_SuperSaphirScrewDiagramSUPER-SAPHIR JT6 Self-Drilling Screws

 

New Product Release – *Only Available at Tanner*

Proper Selection of SUPER-SAPHIR JT6 Self-Drilling Screws

To properly select your SUPER-SAPHIR JT6 Self-Drilling Screws, you must take into account the clamping thickness and required drilling performance.EJOT_ClampThicknessDiagram

Clamp Thickness

To calculate the clamp thickness, you take the thickness of the attachment (a) PLUS (+) the strength of the substructure.

The following formula can be used: Clamp Thickness Greater than or Equal to (a) + 6mm.

Drilling PerformanceEJOT_DrillingPerformanceDiagram

The drilling performance is calculated from the thickness of the components to be drilled.

The following formula can be used for Direct Bearing Surface (trapezoidal profile to steel substructure): t = component (tI) + component (tII).

The following formula can be used for Sandwich Panels: t = component (tII).

Get Increased Reliability with Sealing Washers

EJOT recommends using the sealing washers with SUPER-SAPHIR JT6 Self-Drilling Screws that are used in unweathered areas. The risk of damaging the screw joint with improper installation (excessive tightening torque, slightly sloped clamping) is significantly reduced when sealing washers are used. Clamp load and tensile stress, are also limited in the screw when using the sealing washers. The sealing washer will also help eliminate a direct exposure of the joint (protective surface coating damaged by the fastening process) – significantly dropping the risk of operational, hydrogen-induced embrittlement failure.

EJOT_SealingWasherInstallationDiagram

Correctly Install JT6 Self-Drilling Screws with Sealing Washers

When installing SUPER-SAPHIR JT6 Stainless Steel Self-Drilling Screw with Sealing Washers, depth control must be used. Adjustable depth control will prevent the deformation of the sealing washer (washer with elastomer seal). If the sealing washer is properly installed, you may see the rubber seal overlap. But if the metal back of the sealing washer changes from convex to concave, the screw was installed too tight.

slider_EJOTMarineGrade316Screws
EJOT Marine Grade 316 Stainless Steel Bi-Metal Self-Drilling Screws Available Now at Tanner

Find the Correct Cutting Wheel for Your Next Job

United Abrasives Cutting Wheels Make Tough Jobs Easy

The versatility of United Abrasives cutting wheels has made the jobs of welders, fabricators and maintenance technicians easier. Cutting wheels provide them with a quick and simple way to cut pieces of metal without the need for dragging around bulky equipment. But to truly get the most out of your cutting wheels, without sacrificing time or efficiency, users need to know how to choose the correct cutting wheel for the job they are performing.

Choose the Right United Abrasives Cutting Wheel for Your Job

United Abrasives offers a wide variety of options of cutting wheels for any job you may encounter. Choosing the proper cutting wheel for the job you will be performing will lead to more efficient cutting, longer tool life and a better overall end product. Read on to learn more about the different options of wheel styles, sizes and grain types United Abrasives has to offer.

Cutting Wheel Styles Available045CuttingWheels

.045″ Cutting Wheels

United Abrasives .045″ cutting wheels are the best choice for efficient cutting. They should never be used for deburring metal after cutting or grinding. This type of misuse could result in wheel failure resulting in severe injury.

.090″ Cutting Wheels090CuttingWheels

United Abrasives .090″ cutting wheels are designed for cutting and notching metal. Notching is a shearing process during which a metal scrap piece is removed from the outside edge of a metal workpiece prior to welding.

Ultimate Combo™ Wheels

United Abrasives Ultimate Combo™ Wheels are the most UltimateComboCuttingWheelsversatile cutting wheel available. Ultimate Combo™ Wheels have a .095″ thickness. This combination wheel allows operators to cut, notch, debur and light grind without the need to change the wheel.

Configurations of Cutting Wheels Available

There are two basic types of configurations available for cutting wheels.

Type 1 / Type 41 Cutting WheelsCuttingWheelTypes

This is a flat cutting wheel that allows for a maximum depth of cut.

Type 27 / Type 42 Cutting Wheels

Originally developed and patented by United Abrasives, this configuration of cutting wheel features more of a rigid feel while cutting, enhanced operator visibility of the cut and the ability to flush cut as the raised hub allows for the locking nut to be recessed. These wheels are also available with a 5/8″-11 quick change hub for ease of mounting.

Grain Types Available for Cutting Wheels

Aluminum Oxide Grain

Aluminum Oxide grain cutting wheels are the most common grain type for cutting wheels. These wheels deliver very good cut rates and durability. They tend to have a lower initial cost for the user which lends to its popularity.

Zirconium Grain

Zirconium grain cutting wheels feature an extremely durable design. These wheels are used for high performance cutting with long life and feature a low cost-per-cut ratio.

Ceramic Grain

Ceramic grain cutting wheels allow for long life and fast cutting speeds. Ceramics also tend to cut cooler, minimizing discoloration while maximizing product life.

Shop Abrasive Cutting Wheels at Tanner

Tanner carries a wide variety of United Abrasives cutting wheels for a number of different applications. Find the perfect cutting wheel for your next job now – Shop United Abrasives Cutting Wheels

Cutting Wheel Section Guides

045CuttingWheelSelectionChart

090-095CuttingWheelSelectionChart

Tool Drop Safety Solutions Guide – Fall Protection for Tools

Safety Solutions with Tanner

Tanner’s main goal as a Safety Solutions Specialist is to make sure everyone arrives home safe from the job site each and every day. We strive to spread the word on the importance of using the proper personal protection, fall protection & tool drop protection equipment. Safety is a 24/7 job that everyone needs to take part in.

Danger from Above

A dropped wrench may seem innocent enough, but did you know that 8 lbs wrench dropped from 200 ft. could come slamming down to the ground with over 5,000 lbs. of force? If this wrench were to strike you with that amount of force, the resulting injuries could severely hinder your ability to work, if you were lucky enough to survive. While Fall Protection Equipment is for the individual, Tool Drop Equipment is for everyone who works around you.Tool Drop Safety Solutions Guide

Stop the Drop with Tanner

To help Stop The Drop, Tanner has developed a Tool Drop Safety Solutions Guide to help you properly equip your tools with drop protection products. This easy to use guide will be your number one source for quick tool drop solutions.

  • Browse through the most popular tools and equipment used on the job site
  • Find the correct Tool Drop Attachment Point(s) for the tool(s) you are using
  • The detailed Tool Drop Solutions will help you correctly connect the attachment point(s) to your tool(s)
  • Once attached, your tool is now “Tether-Ready”
  • Take your Tether-Ready tool and connect it to an Anchorage Point
  • You are now ready to safely use your tool(s) at heights

Read, Print & Share Tanner’s Tool Drop Safety Solutions Guide

Tool Drop Prevention Systems

Tool Drop Prevention Systems are similar to personal fall arrest systems and include the same types of components. Tool Drop Prevention systems should include: Tool Attachment Points, Connector, Anchorages & Buckets/Bags.

Tool Drop Attachment Points

Tool Drop Attachment Points are similar to a worker’s safety harness, they must be a secure point on the tool that is load-rated for at least the total weight of the ToolDropAttachmentPointstool. Once your tool has an attachment point, it is now considered “tether-ready”.

  • Quick Spin & Quick Rings
  • D-ring Cord
  • D-ring & Quick-Wrap Tape
  • Tool Cinch Attachments

Tool Drop Connectors

Tool Drop Connectors are similar to lanyards or SRLs for personnel. The main function of tool drop connectors is to ensure the toolToolDropConnectors remains securely attached to an anchorage point in the event the tool is dropped.

  • Lanyards
  • Tethers
  • Hard Hat Tethers
  • Retractors

Tool Drop Anchorage Points

Tool Drop Anchorage Points can take many forms due to the wide variety of sizes & weights of commonly used tools & equipment. ToolDropAnchoragePointsThere are two main types of anchorage points for tools: Off the Body, for tools over 5 lbs. & On the Body, for tools under 5 lbs.

  • Tool Belts
  • Belt Loops
  • Holsters
  • Wristbands

Tool Drop Buckets & Bags

Tool Drop Buckets & Bags are designed specifically for drop prevention. Engineered with built in closure systems that help prevent ToolDropBucketsBagsdropped tools & objects.

  • Spill Control Buckets
  • Long Safe Buckets
  • Small Parts Pouches
  • Tool Drop Pouches

Corrosion Resistant Construction Fasteners from Elco

Featuring High-Performance Stalgard® Corrosion Resistant Coatings

To meet the needs of the wide range of concrete & masonry applications in corrosive environments, Elco Construction Products has developed Stalgard®, a specialized corrosion resistant coating. Specifically designed for critical fastening applications in concrete & masonry in exposed environments, don’t take any chances, choose Elco fasteners with Stalgard® corrosion resistant coating.

What is Stalgard® CoatingStalgardScrewCircleRoHSLogo

Stalgard® corrosion resistant coatings are durable, multi-layer, coatings that are engineered to provide optimal performance in the most demanding construction applications. These environmentally friendly finishes are free from chromates & silicates and any process, like electroplating, that might induce hydrogen embrittlement & structural failures.

  • Maximizes fastener performance
  • Salt spray corrosion resistance at 1000+ hours with no red rust per ASTM B117
  • Uniform thickness
  • Low coefficient of friction – eliminates the need for post-coating lubricants to ease installation
  • Does not use processes that introduce hydrogen – will not cause brittle failures like those caused by electroplating
  • Durable tough finish – doesn’t come off during handling or repeated installations
  • Eliminates the plating process, resulting in a more environmentally friendly product than those with plated zinc or other finishes
  • RoHS Compliant – chrome-free
  • Clean and dry – no oily residue
  • Maintains drilling and tapping performance
  • Blue, grey, and white Stalgard are ACQ-compatible

What are the Different Types of Stalgard® Corrosion Resistant Coatings

Stalgard®StalgardLogos

  • For Induction Heat-Treated Fasteners
  • Proven, outstanding corrosion resistance for most construction applications, including metal and wood
  • Salt spray resistance: 1000 hours per ASTM B117, 1600 hours over 410 stainless steel
  • Available colors: silver, black, blue, white, yellow, red, gray and brown
  • Pantone gray available for ACQ-treated lumber
  • Maintains drilling and tapping performance

Stalgard® GB

  • Galvanic Barrier Coating
  • Standard on all Elco stainless steel fasteners
  • Prevents a galvanic reaction between the stainless steel and dissimilar application materials, which could lead to fastener and/or joint failure
  • Salt spray corrosion resistance: 1000 hours per ASTM B117
  • Available color: Silver
  • Maintains drilling and tapping performance

Stalgard® SUB

  • Ultimate Barrier Coating
  • For more severely-corrosive environments
  • Salt spray 2,000 hours per ASTM B117
  • Available color: Silver
  • Maintains drilling and tapping performance

Construction Fasteners Featuring Stalgard® Corrosion Resistant Coatings at Tanner

For Metal ApplicationsStalgardScrews

For Aluminum Applications

For Concrete Applications

Self-Drilling Screws – How They Work

Self-Drilling Screws eliminate the need for separate drilling and tapping operations, helping provide the user with a faster, more economical installation process. Self-Drilling Screws operate on the same basic principles as a drill bit or other cutting tool. Performance for these screws are determined by cutting speed, feed rate, depth of cut and the working material being drilled into.

Optimal Performance Conditions for Self-Drilling ScrewsOptimalCuttingConditionsScrewSize

Proper installation of self-drilling screws depend on a number of factors and can (mostly) be controlled by the user. The table to the right, can be used as a guide to help properly install different nominal screw sizes. *Suggested combined maximum values. Values may be increased or decreased, as long as associated variable are changed proportionally.

  • Screw Point Geometry – the shape of the self-drilling screw drill point, not directly adjustable by the user
  • RPM – the speed of the drill/driver motor while installing the screw. Can be adjusted using a variable speed drill/driver
  • Applied Force – a measurement of the force applied by the user as the screw is installed, more force is not necessarily better
  • Work Material Hardness – the material’s resistance to drilling or cutting, in most cases, the harder the material, the more difficult it is to drill/cutSelfDrillingScrewAnatomy

Important Features to Consider When Choosing a Self-Drilling Screw

When selecting the correct self-drilling screw for your application, there are a number of factors to take into consideration. This includes the types of materials being attached and the thickness of the materials. In addition to the working material, the following design features should be also be considered before selecting your screw.

  • Drill Flutes – allow the drilled material to exit the hole, once completely embedded, the flutes can no longer remove these chips. These chips contain approximately 80% of the heat created during the installation process. If these chips buildup, this could cause the point to over-heat and fail.
  • Point Length – determines the thickness of the material which the screw can dependably drill through. The pilot section of the drill point, unthreaded portion, must be able to completely drill through the working material before the threads engage. Fasteners can bind and break if the threads engage before drilling is complete.DrillPointWings
  • Point Wings – are not present on all self-drilling screws, they are used when you need to fasten thicker materials, such as wood to metal applications. When drilled, the wings will enlarge the hole in the fastened material, allowing the threads to pass through without engaging the threads. This added clearance prevents the separation of the materials being fastened together, known as jacking. The wings will then break away once the come in contact with the metal before the threads engage the metal.

Self-Drilling Screws Available at Tanner

At Tanner we offer one of the most complete lines of self-drilling screws available. Choose from: Standard Self-Drilling Screws, Bi-Metal Self-Drilling Screws, Self-Drilling Reamers, Structural Self-Drilling Screws, Tamper-Resistant Self-Drilling Screws & much more! If you have any trouble finding a particular size or style of screw online, please feel free to reach out to one of our knowledgeable product specials – Email: websales@tannerbolt.com | Phone: 800-456-2658

Don’t Forget About

  • Screw Drill Point Material – are usually plain carbon steel which is less stable at high temperatures. To help reduce the wear on the drill point, fasten using a motor drill rather than an impact driver or hammer drill.
  • High Temperature Failure – the heat generated when drilling in self-drilling screws affects how quickly the drill point fails. For additional information on this, please refer to the troubleshooting guide below.
  • Drilling Temperature – motor RPM, applied force and work material hardness, all contribute to the the drilling temperature. Increasing any of these values also increases the heat generated.
  • Reducing Applied Force – this can help increase durability, allowing the drill point to penetrate thicker materials.
  • Reducing Motor RPM – this can help improve the performance when drilling into harder materials. This will allow the user to push harder during the drilling process and extend the drill point life.

Drill Point Failure Examples

Champion Impact Ready Industrial Cutting Tools

Are You Ready for Impact

With power tools changing, your cutting tools need to change with them. Luckily Champion Cutting Tools hex shank tools are ready for impact. Innovation doesn’t have to be ground breaking, it just has to be problem solving.

Problem Solved with Champion Hex Shank Tools

Drill, Enlarge, Countersink & Tap all without switching your impact driver. Choose Champion hex shank tools for convenience, productivity & quality. Engineered for all your electrical, mechanical, construction & maintenance needs.

This Lineup is Making an ImpactHEX28-Drills

HEX28 Hex Shank Drills

Available at Tannerbolt.com – Shop Now

  • Superior Performance to Standard Hex Shank Drills on the Market
  • 135 Degree Self-Centering Split Point
  • Self Centering for Quick Penetration & Accurate Drilling Every Time
  • Heavy Duty Steel Construction
  • High-Speed Steel (HSS)
  • Drill Will Not Come Out of Shank
  • Shorter, Mechanics Length Design Provides Increased Rigidity for Enhanced Operator Control
  • Engineered for use in impact drivers and cordless drills with hex shank capacityCT3

CT3 Carbide Tipped Hole Cutters

Available at Tannerbolt.com – Shop Now

  • Cut up to 150 holes with each cutter in Stainless Steel
  • 1/4″ hex shank for use in QCD (Quick Change Driver)
  • Three special tungsten carbide teeth
  • One piece construction
  • Ejector spring (standard)
  • Safety collar stop
  • Perfect for use in battery powered drills
  • Engineered for cutting thin materials up to 1/8″ with fast clean cuts every time

3 Piece Hex Shank Step Drill Set – MSD-HEX-SET3MSD-HEX

Available at Tannerbolt.com – Shop Now

  • Titanium Nitride Coated for extended life and increased performance
  • Cuts steel plate, stainless steel, sheet metal and tubing
  • 1/4” Hex shank for use in QCD (quick change driver)
  • Self starting, split-point bites right in, reduces walking
  • Step size laser marked onto tool
  • 2 flute design provides balanced, symmetrical and faster, cleaner holes
  • Great in cordless impact drivers
  • Perfect for use in battery powered drills because they cut quickly with low power consumption
  • 65% more holes than the nearest competitorCSK-SH-SET

Hex Shank Countersink Set – CSK-SH-SET

Available at Tannerbolt.com – Shop Now

  • 82º Weldon Style
  • Chatterless Finish
  • Single Cutting Edge
  • For Fast Stock Removal
  • Impact Ready 1/4″ Hex Shank
  • Ideal for use in portable applications and materials, including metal, plastic, wood & aluminum
  • Perfect for the glass and window design industry, storefront & door frame installation

Hex Shank Tap & Drill Combo Set – DT22HEXDT22HEX-Set

Available at Tannerbolt.com – Shop Now

  • Industrial quality, hex shank, 135º split point combination drill & taps are great for maintenance, electrical work, construction, and more
  • Create holes and tap in a single operation
  • Hex Shank is ideal for use in impact drivers and cordless drills

Stay Safe from Carbon Monoxide Poisoning

Working with an Invisible & Silent Killer on the JobsitecoEngine

This invisible & silent killer is Carbon Monoxide (CO), a poisonous, colorless, odorless & tasteless gas. Carbon Monoxide may be odorless, but often gets mixed with other gases with an odor. Carbon Monoxide is a common industrial hazard, CO is the result of the incomplete burning of material containing carbon such as, natural gas, gasoline, kerosene, oil, propane, coal and wood. One of the most common sources of carbon monoxide exposure on jobsites comes from the internal combustion engine.

How Harmful is Carbon Monoxide

In large amounts, carbon monoxide can overcome you in just minutes, causing you to lose consciousness and suffocate. CO is harmful when breathed in because it displaces the oxygen present in the blood, which deprives the heart, brain and other vital organs of oxygen. Carbon monoxide poisoning is deadly, but can also be reversed if it caught in time. Even if you are lucky enough to recover, acute poisoning may still result in permanent damage to the heart & brain. Significant reproductive risk has also been linked to carbon monoxide poisoning.

What are Common Signs of Carbon Monoxide Poisoning

Symptoms will vary widely from person to person, but will occur sooner in persons most susceptible such as: young children, elderly, people with heart or lung disease, workers at height, smokers & people with elevated CO blood levels. This includes an elevated risk to fetuses.

  • Tightness across the chest
  • Sudden chest pain
  • HeadachecarbonMononxideStopped
  • Fatigue
  • Dizziness
  • Drowsiness
  • Nausea

Prolonged or High Exposure Can Lead to

  • Symptoms worsening
  • Vomiting
  • Confusion
  • Passing out
  • Loss of consciousness
  • Muscle weakness

What Should You Do if You Expect Someone Has Been Poisoned by Carbon Monoxide

  • Immediately move the victim to an open area with fresh air
  • Seek out medical attention/assistance, call 911 or other local emergency number
  • If victim is still breathing, administer 100% oxygen to the victim using a tight-fitting mask
  • If victim has stopped breathing, administer cardiopulmonary resuscitation

Make sure that rescuers are not exposed to dangerous carbon monoxide levels when performing rescue operations.

How Can Employers Help Prevent Carbon Monoxide Poisoning

  • Install an effective ventilation systems that remove CO from work areas
  • Maintain equipment and appliances on a regular basis that can produce CO
  • Consider switching from gasoline-powered equipment to equipment powered by electricity, batteries, or compressed air if possible
  • Prohibit the use of gasoline-powered engines and tools in poorly ventilated areas
  • Provide personal CO monitors with audible alarms if potential exposure to CO exists
  • Test air regularly in areas where CO may be present
  • Use additional self-contained breathing apparatus with proper air supply in areas with high CO concentrations
  • Use respirators with appropriate canisters, in conjunction with personal CO monitoring, for short periods under certain circumstances where CO levels are not exceedingly high
  • Educate workers about the sources and conditions that may result in CO poisoning as well as the symptoms and control of CO exposure
  • If your employees are working in confined spaces where the presence of CO is suspected, you must ensure that workers test for oxygen sufficiency before entering

OSHA Standards for Carbon Monoxide Exposure

  • The OSHA permissible exposure limit (PEL) for CO is 50 parts per million (ppm). OSHA standards prohibit worker exposure to more than 50 parts of CO gas per million parts of air averaged during an 8-hour time period.
  • The 8-hour PEL for CO in maritime operations is also 50 ppm. Maritime workers, however, must be removed from exposure if the CO oncentration in the atmosphere exceeds 100 ppm. The peak CO level for employees engaged in Ro-Ro operations (roll-on rolloff operations during cargo loading and unloading) is 200 ppm.