The TRI-WING ®  tri-form fastening system is the recommended design for all applications that require high torque but must also be tamper resistant. 

Its offset three wing design generates above average torque while the vertical side walls inhibit the cam-out problems that could damage the screw or surrounding surfaces.

The unique recess design protects against removal with any  tool other than a mating TRI-WING driver.

TRI-WING ADVANTAGES

 • Tamper Resistant
 
 • Extend drive tool life
 
 • High torque Applications