1 4" 20 Black Nylon Lock Nuts, 54Pcs Nylon Insert Locknuts, 304 Stainless Steel 18 8 Nylock Nuts, Black Oxide, Coarse Thread, Hex Drive, Bright Finish, for Furniture, Tools, Handle, Repairing Jobs 1 4 20 industrial_Oct2022 cutting surface: 4 cm Curved quick drying cutting surface: 4 cm Curved cutting surface Professionally ground and processed Professional quality from InstrumentNRW based in Germany Professional supplies Rustproof hardened stainless steel They do not require refrigeration and can be stored at room temperature the mechanical industry and construction Package Includes Each package includes 54Pcs x 1 4 20 Nylon Insert Hex Stainless Locknuts