6-20 x 5/16 6 Lobe Flat Undercut Thread Cutting Screw Type 25 Fully Threaded Zinc DPG They feature a full thread

They feature a full thread design for maximum holding power and a hex washer head for easy driving

The 5/16-20 x 5/8 Unslotted Indented Hex Washer Self Tapping Screw Type A Full Threaded Zinc is a versatile fastener designed for a wide range of applications

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

while the plain finish ensures compatibility with a variety of materials

while the 3 1/2-inch length provides ample reach

6-20 x 5/16 6 Lobe Flat Undercut Thread Cutting Screw Type 25 Fully Threaded Zinc DPG They feature a full thread6 20 x 5 16 6 Lobe Flat Undercut Thread Cutting Screw Type 25 Fully Threaded Zinc: This screw is made of zinc plated steel and has a 6 20 thread size. It is 5 16 inches long and has a flat undercut thread cutting point. The screw has a 6 lobe drive and is fully threaded. It is Type 25, which means it has a coarse thread pitch. This screw is designed for use in wood and metal applications.