Category: Fasteners, Security

A carriage bolt is used to fasten metal to metal, wood to wood, and wood to metal. The head of a carriage bolt is round with a square neck under the head. The square neck functions as a locking device when inserted into a pre-drilled hole, designed to keep the…

Tanner Bolt & Nut Corp. features seven types of security fasteners with unique drive configurations, each available in different head styles and materials. Security fasteners are cap screws, machine screws, self-drilling screws, concrete screws, sheet metal screws, nuts, or bolts manufactured with a tamper-proof or tamper-resistant drive or head style….