5/16 x .016 NAS1149 Military Flat Washer 18-8 Stainless Steel DFAR HTF and it has a wax

and it has a wax coating for improved lubrication and ease of installation

It is made of zinc-plated steel and has teeth on the inside diameter that bite into the surface of the bolt or nut

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

The no nibs design means that the screws do not have any sharp points that can damage the wood

5/16 x .016 NAS1149 Military Flat Washer 18-8 Stainless Steel DFAR HTF and it has a waxThe 5 16 x . 016 NAS1149 Military Flat Washer is a thin, circular piece of 18 8 stainless steel used to distribute the load of a fastener and prevent damage to the surface of the material being fastened. It has an outer diameter of 5 16 inches and a thickness of . 016 inches. The washer meets the specifications of NAS1149, a military standard for aerospace fasteners, and is DFAR compliant, meaning it is manufactured in accordance with the Defense