5/16-18 x 3/4 Socket Head Cap Screw Zinc DFAR DPFDNCC The black oxide finish provides

The black oxide finish provides a protective coating that helps to prevent rust and corrosion

The full thread design provides maximum grip

This 1/4-20 x 2 1/4 Phillips Pan Machine Screw is a fully threaded screw with a black zinc finish

032 Flat Washer Nylon is a thin

The head of the screw is a hex washer head

5/16-18 x 3/4 Socket Head Cap Screw Zinc DFAR DPFDNCC The black oxide finish provides**Socket Head Cap Screw, Zinc DFAR** * **Size:** 5 16 18 x 3 4 inches * **Head:** Socket head (hexagonal recess) * **Material:** Steel * **Finish:** Zinc plated * **Diameter:** 5 16 inches * **Length:** 3 4 inches * **Thread:** 18 threads per inch * **Drive:** Hex key * **Strength:** Meets DFAR (Defense Federal Acquisition Regulation) standards for strength and durability * **Applications:** Used in various industrial and construction applications