3/8-16 x 3 1/2 Phillips Flat Machine Screw Fully Threaded Zinc 5/16-18-3B The bolt is threaded with

The bolt is threaded with 18 threads per inch and is designed to be used with a nut or washer

The bolt has a 1/2-13 thread pitch and a 2 3/4-inch length

This 5/16-9 x 2 A/F hex washer head lag screw is made of steel and has a zinc finish

This 1 3/4 inch USS flat washer is made of zinc-plated steel and is designed to distribute the load of a bolt or screw over a larger surface area

The nut has a square hole in the center

3/8-16 x 3 1/2 Phillips Flat Machine Screw Fully Threaded Zinc 5/16-18-3B The bolt is threaded withThis 3 8 16 x 3 1 2 Phillips flat machine screw is made of steel and has a zinc finish. It has a fully threaded body and a Phillips drive. This screw is commonly used in a variety of applications, including construction, manufacturing, and automotive. It is designed to provide a strong and secure hold in a variety of materials, including wood, metal, and plastic.