1/2-20 x 1 3/4 Fine Thread Flat Socket Cap Screw Plain ABPOU They have a hex washer

They have a hex washer head with a serrated flange

which provides a finished appearance

This 3/8-24 Castle Nut Grade 5 Zinc is a high-quality nut that is perfect for a variety of applications

This 5/8-11 x 3 1/2" fully threaded carriage bolt is made of steel and has a zinc finish for corrosion resistance

This 5/16-18 x 1 3/4 Elevator Bolt Zinc is a high-quality fastener designed for use in a variety of applications

1/2-20 x 1 3/4 Fine Thread Flat Socket Cap Screw Plain ABPOU They have a hex washerThe 1 2 20 x 1 3 4 Fine Thread Flat Socket Cap Screw Plain is a type of fastener used to secure two or more objects together. It is made of steel and has a plain finish. The screw has a 1 2 inch diameter and a 20 threads per inch (TPI) fine thread pitch. It is 1 3 4 inches long and has a flat socket head that requires a hex key or Allen wrench to tighten or loosen. This screw is commonly used in automotive, industrial, and construction applications.