440-TX-15-H Apex 1/4'' Torx Hex Insert Bits, Tamper Resistant

1/4'' Apex® Torx Insert Bits, Tamper Resistant Description

Apex® 1/4'' hex insert drive Torx bits, tamper resistant from Apex® Fastener Tools, formally Cooper Tools. Tamper resistant Torx screws feature a post in the center of the recess, this post will only fit into a tamper resistant Torx bit. Torx fasteners are becoming extremely common in automotive repair and appliance assembly. By design, Torx head screws resist cam-out better than Phillips head or Slotted head screws. Where Phillips heads were designed to cause the driver to cam-out, to prevent over tightening, Torx heads were designed to prevent cam-out. The reason for this was the development of better torque-limiting automatic screwdrivers for use in factories.

Apex Fastener Tools Catalog Page: 10