Brand New 1/4-20 x 1-1/2″ Security Machine Screw – Round One-Way Head – 18-8 Stainless Steel – FT – 100 Pk

Security fasteners provide an added level of security by their drive design that prevents removal with ordinary screw drivers. Maximum torque transfer & positive tool engagement means easier drive installation with less pressure & slippage. Requires matching driver bit.
Round Head screws are widely used for general purposes, featuring a high crown with a deep recess and smaller diameter head than truss or pan heads.