5/8-11 x 4 Coarse Thread Socket Head Cap Screw Black DFAR RIPP which means they can be

which means they can be driven directly into the material without the need for a pilot hole

They are made of steel and have a black phosphate finish for corrosion resistance

These 10 x 4 Phillips flat head wood screws with nibs feature a deep thread design and a Type 17 point for superior holding power in wood applications

This high-quality insert rivet nut features a flat head design for a flush finish

which provides additional corrosion resistance

5/8-11 x 4 Coarse Thread Socket Head Cap Screw Black DFAR RIPP which means they can be5 8 11 x 4 Coarse Thread Socket Head Cap Screw Black DFAR is a high strength fastener designed for demanding applications. It features a 5 8 inch diameter, 11 threads per inch coarse thread pitch, and a 4 inch length. The socket head design allows for easy driving with a hex key or Allen wrench. The black finish provides corrosion resistance and a sleek appearance. This screw meets the requirements of the Defense Federal Acquisition Regulation