1/2-13 x 12 Square Head Machine Bolt Plain L188 This 1/4-20 x 2 1/2

This 1/4-20 x 2 1/2 ribbed neck carriage bolt is fully threaded and zinc-plated for corrosion resistance

making them a trusted choice for demanding projects

It has a square head that provides a secure hold when tightened

The screw features a hex head for easy driving and a yellow zinc coating for corrosion resistance

which means that there are 18 threads per inch

1/2-13 x 12 Square Head Machine Bolt Plain L188 This 1/4-20 x 2 1/21 2 13 x 12 Square Head Machine Bolt Plain is a type of fastener used to secure two or more pieces of material together. It has a square head and a threaded shaft. The square head provides a surface for a wrench or socket to grip, while the threaded shaft screws into a nut or tapped hole. This bolt is made of plain steel, which means it is not coated or plated. It is commonly used in construction, automotive, and other industrial applications.