1/4-20 x 1/2" Button Head Torx Security Machine Screw Bolt, Includes bit, Fully Threaded, 18-8 Stainless Steel Tamper Resistant
: Machine Screws
: Bridge Fasteners
- 1/4-20 Thread Size, Button Head 6-Pin-in drive system for a tamper resistance
- 1x T27 Bit Included with 25QTY and 4x with 1000QTY
- 1/2" Length, Machine Screw Fully Threaded
- 18-8 Stainless Steel, High Quality, provides great strength and protection against corrosion to make these fasteners last!
- Qty: 25/1000
A popular generic name for the drive is star, as in star screwdriver or star bits. The official generic name, standardized by the International Organization for Standardization as ISO 10664, is hexalobular internal. This is sometimes abbreviated in databases and catalogs as 6lobe (starting with the numeral 6, not the capital letter, G). Torx Plus, Torx Paralobe and Torx tap are improved head profiles.
By design, Torx head screws resist cam-out better than Phillips head or slot head screws.Whereas the tendency of Phillips drivers to cam out under excessive torque has been listed as a feature preventing damage to the screw-head or driver, Torx heads were designed to prevent cam-out. The development of better torque-limiting automatic screwdrivers for use in factories allowed this change. Rather than rely on the tool to slip out of the screw head when a desired torque level is reached (which risks damage to the driver tip, screw head, and/or workpiece), torque-limiting driver designs achieve a desired torque consistently.
The Torx design allows for a higher torque to be exerted than a similarly sized conventional hex socket head without damaging the head and/or the tool. The diagram depicts the interaction between the male and female components of a conventional hex drive and a Torx drive. The clearance between the components is exaggerated for clarity.
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