... --m64 material :Carbon Steel, Alloy Steel, Stainless Steel spec :spring lock washersize :m4--m64material :Carbon Steel, Alloy Steel, Stainless ... bolts, heavy hex bolts, hex flange bolts, carrage bolts, wheel bolts, stud boltsNUTS: hex nuts, heavy hex nuts, hex ... nuts, cap nuts, slotted nuts, rivet nutWASHERS: flat washers, spring washers, lock washersSCREWS: machine screws, self tapping screws, set ...