5/16-18 x 3 3/4 Socket Head Cap Screw Zinc DFAR SD The self-tapping design allows them

The self-tapping design allows them to create their own threads as they are driven into a material

metal framing

They feature a unique internal tooth design that bites into the mating surface

creating a secure lock that resists rotation

These screws are corrosion-resistant and can be used in a variety of applications

5/16-18 x 3 3/4 Socket Head Cap Screw Zinc DFAR SD The self-tapping design allows them**5 16 18 x 3 3 4 Socket Head Cap Screw Zinc DFAR** This socket head cap screw is made of steel and has a zinc finish. It has a 5 16 18 thread size and is 3 3 4 inches long. The screw has a hex socket drive and a flat head. It is DFAR compliant, meaning that it meets the requirements of the Defense Federal Acquisition Regulation Supplement.