... Copper, Nylon, din96 (slottd round head wood screws )size :m4--m8material :Carbon Steel, Alloy Steel ... flange nuts, nylon insert lock nuts, cap nuts, slotted nuts, rivet nutWASHERS: flat washers, spring washers, lock washersSCREWS: machine screws, self tapping screws ... , set screws, hex socket head cap screws, wood screws, self drilling screwsChain ...