1/4-20 x 3/8 Unslotted Indented Hex Washer Thread Cutting Screw Type 1 Fully Threaded Zinc 5/16-18 NTU while the flat washer helps

while the flat washer helps to prevent the screw or bolt from sinking into the material

5/8" USS Flat Washer

It features a 1/4-inch diameter and a length of 4 inches

The 4-40 x 1 Phillips Pan Machine Screw Fully Threaded 18-8 Stainless Steel is a versatile and durable fastener designed for a wide range of applications

while the coarse thread provides a strong hold

1/4-20 x 3/8 Unslotted Indented Hex Washer Thread Cutting Screw Type 1 Fully Threaded Zinc 5/16-18 NTU while the flat washer helps1 4 20 x 3 8 Unslotted Indented Hex Washer Thread Cutting Screw Type 1 Fully Threaded Zinc is a type of screw that is used to fasten two pieces of metal together. It has a 1 4 20 thread, which means that it has 20 threads per inch and a diameter of 1 4 inch. The screw is 3 8 inches long and has a fully threaded shank. It has an un slotted indented hex washer head, which means that it has a hexagonal head with no slot and a washer like flange