Castle NutsOpposing slots are cut into the end opposite the bearing surface through the centers of the flats. Slots are used for the insertion of a cotter pin or safety wire and through a drilled hole in the mating fastener. This creates a secure hold that prevents loosening or unscrewing. Also called a Slotted Nut.
Available in the following finishes and sizes:
Plain, Zinc Plated, Hot Dipped Galvanized, Black Oxide, Silicone Bronze, Yellow Zinc, Aluminum, 316 SS, and 304/18-8/410 SS.