1/2-13 x 4 Square Head Machine Bolt Plain C5FT while the hexagonal head allows

while the hexagonal head allows for easy tightening and loosening with a wrench

The 1/4-20 x 1 1/4 Hex Cap Screw Grade 2 Non A307 Black Oxide and Oil is a high-quality fastener designed for use in a variety of applications

This bolt is ideal for use in wood or metal applications

This 1/4-20 x 2 1/4 Hanger Bolt Full Thread Zinc is a versatile and durable fastener designed for hanging applications

With a length of 2 3/4 inches

1/2-13 x 4 Square Head Machine Bolt Plain C5FT while the hexagonal head allows1 2 13 x 4 Square Head Machine Bolt Plain is a type of fastener that is used to secure two or more pieces of material together. It is made of steel and has a square head with a 1 2 inch diameter and a 13 thread per inch pitch. The bolt is 4 inches long and has a plain finish. It is designed to be used with a washer and nut to provide a secure connection.