7/8-9 Castle Nut Zinc (Pack Qty 60) BC-87NHC

PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot. Used when a flush mounting, high strength screw is required. Commonly used in tools and dies where moving parts pass over the fastened area.

• 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 maximum