10-32 x 5/16 Fine Thread Socket Head Cap Screw Black DFAR YQFT It has a square drive

It has a square drive head that is designed to be used with a square drive bit

The 8-32-3 Self Clinching Nut Zinc is ideal for use in applications where space is limited and a strong hold is required

This washer is ideal for applications where vibration or shock loads may cause fasteners to loosen

They are also often used in automotive and marine applications

The 10-32 x 3 Phillips Flat Machine Screw Fully Threaded Zinc is a versatile and durable fastener designed for a wide range of applications

10-32 x 5/16 Fine Thread Socket Head Cap Screw Black DFAR YQFT It has a square driveThis 10 32 x 5 16 Fine Thread Socket Head Cap Screw is made of black oxide coated steel and meets the requirements of DFAR. It has a hex socket drive and a fully threaded body. The screw is designed for use in a variety of applications, including automotive, aerospace, and electronics. It is corrosion resistant and has a tensile strength of 120,000 psi. The screw is RoHS compliant and is available in a variety of lengths.