... etcMaterial: Carbon Steel, Stainless steel, Aluminium, Brass Coating: Plain, zinc plated, galvanized, nickel plated. BlackWe can supply you with full kinds of fasteners ... bolts, masonry bolts, roofing bolts.Nuts: spring nuts, T nuts, K nuts, rivet nuts, cage nuts, lock nuts, hex nuts, hex flange nuts, wing nuts, weld nuts, square nuts, cap nuts.Washers: flat washers, spring ...