1/4-20 x 2 3/4 Serrated Hex Flanged Washer Full Thread Screw Case Hard Zinc 1 3/8-12 Its flat undercut head sits

Its flat undercut head sits flush with the surface

They are made of zinc-plated steel for corrosion resistance and have a square drive head for easy installation

Its hex shape allows for easy tightening and loosening with a standard wrench

The bolt is 4 1/2 inches long and has a diameter of 5/16 inches

These 10-16 x 3/8" Unslotted Indented Hex Washer Self Drill Screws are designed for fastening metal to metal

1/4-20 x 2 3/4 Serrated Hex Flanged Washer Full Thread Screw Case Hard Zinc 1 3/8-12 Its flat undercut head sitsThis 1 4 20 x 2 3 4 Serrated Hex Flanged Washer Full Thread Screw Case Hard Zinc is a versatile and durable fastener designed for a wide range of applications. The 1 4 20 thread size ensures a secure fit, while the 2 3 4 inch length provides ample reach. The serrated hex flange washer head helps to distribute the load and prevent the screw from loosening. The full thread design allows for maximum holding power. The case hardened zinc plating provides