Tri-Groove Tamper Proof Screw and Security Nut Driver Sockets

Tri Groove Driver Sockets are made of Alloy Steel. The TriGroove tamper resistant fastener drive style is also referred to as: Tri-Groove, T Groove, Trident Drive and Coned Trident Drive. Security nuts are installed using a special Tri Groove socket, which grips the indentations along the outside of the fastener to turn the nut along a thread. Tri Groove nuts can only be fastened with Tri Groove Driver sockets. Standard sockets fit 1/4″ square drive Fits tri-groove screw sizes 10, 12, 14 Socket driver only. Handle not included. Security nuts are installed using a special Tri Groove socket, which grips the indentations along the outside of the fastener to turn the nut along a thread. Tri Groove nuts can only be fastened with Tri Groove Driver sockets. Tri Groove Driver Sockets are made of Alloy Steel. The TriGroove tamper resistant fastener drive style is also referred to as: Tri-Groove, T Groove, Trident Drive and Coned Trident Drive.