1/4-20X5/16 Serrated Hex Flanged Washer Full Thread Screw Case Hard Zinc (Pack Qty 3,000) BC-1405MWW

Used for fastening metal to products made of wood, particle board or plastic. The 3-prong style is used in harder materials to minimize splitting of the mating surface. C1004-10 low-carbon steelYou may also like 4-40X5/16 Socket Head Cap Screw Zincd (Pack Qty 100) BC-0405CS.