1/4-20 x 1/2" Security Machine Screw - Flat Torx Head - 18-8 Stainless Steel - Pkg of 100 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. Torx® Pin-Head offers a high degree of security & requires matching driver bit.

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. Flat Head screws install flush with metal surfaces or countersinks with softer materials for a clean appearance.

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.

#10A x 1-1/2" One-Way Sheet Metal Screw - Round Head - 18-8 Stainless Steel - Pkg of 100 Security fasteners provide an added level of security by their drive design that prevents removal with ordinary screw drivers. Popular design installs with standard screwdriver. Reverse side cammed out to prevent unauthorized removal.

Security fasteners provide an added level of security by their drive design that prevents removal with ordinary screw drivers. Traditional Phillips drive with tamper-resistant pin added for security. Easy to drive & remove with matching tool. Cannot be removed with Phillips Screwdriver.