6-20 x 1 Phillips Flat Thread Cutting Screw Type 25 Fully Threaded Zinc XSTI which means that it does

which means that it does not require a washer

They have a 1/4-20 thread size

this carriage bolt provides a secure and long-lasting hold

This 1/2-13 x 2 1/2 Grade 5 Plow Bolt with a #3 Head and Zinc finish is designed for heavy-duty applications

The Phillips pan head allows for easy driving using a Phillips screwdriver

6-20 x 1 Phillips Flat Thread Cutting Screw Type 25 Fully Threaded Zinc XSTI which means that it does6 20 x 1 Phillips Flat Thread Cutting Screw Type 25 Fully Threaded Zinc This screw is a 6 20 x 1 Phillips flat thread cutting screw, type 25, and fully threaded. It is made of zinc and has a length of 1 inch. The screw has a Phillips drive and a flat head. It is designed for use in a variety of applications, including wood, metal, and plastic. The screw is self tapping, which means that it can create its own threads as it is driven into the material.