... --3",m4-m72 coating :zinc,plain ,HDG din985(hex nylon lock nuts)size :1/4--3",m4-m72coating :zinc,plain ,HDGmaterial ... nuts, hex flange nuts, nylon insert lock nuts, cap nuts, slotted nuts, rivet nutWASHERS: flat washers, spring washers, lock washersSCREWS: machine screws, self tapping ...