7/8-14 Castle Nut Zinc (Pack Qty 60) BC-88NHC

Low Carbon Steel: The Slotteds are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener. The Slottedted and castle styles are both interchangeable with the Slottedted design now the preferred style. Grade-5: Offers same advantages as the low carbon castle nut but can be used with Grade-5 bolts and cap screws Low Carbon Steel: Nuts shall be made from a low-carbon steel which conforms to the following chemical composition requirements Carbon: 0.47% max.; Phosphorus: 0.12% max.; Sulfur: 0.23% max. Rockwell C32 maximumYou may also like 1/2-20X 2 1/2 MS35308, Military Hex Head Cap Screw Fine Thread 300 Series Stainless Steel DFAR (Pack Qty 50) BC-MS35308-417.