6-40 Hex Nut Nylon 2-56 NM meaning that it has threads

meaning that it has threads along its entire length

The hex head provides a secure grip for tightening and loosening with a wrench

It also helps to prevent the screw or bolt from loosening over time

This 5/8-18 x 3 1/2 Hex Cap Screw is made of steel and has a zinc finish

The bolt has a 1/4-20 thread size and is 1 3/4 inches long

6-40 Hex Nut Nylon 2-56 NM meaning that it has threadsThe 6 40 Hex Nut Nylon is a small, lightweight, and durable nut that is commonly used in a variety of applications, including electronics, machinery, and furniture. It is made of nylon, which is a strong and flexible material that is resistant to corrosion and wear. The nut has a hexagonal shape, which allows it to be easily tightened and loosened with a wrench. It also has a 4 40 thread size, which is compatible with a variety of screws and bolts.