... ,Rohs Hex Machine Screw Nuts — Zinc, CoarseMaterial:stainless steel,steel,copperDia:M2-M20Surface Finish:nickel plated,white zinc,black zinc,color zinc,black oxide, ... offering good nut products but also offering chipboard Screw, machine Screw , wood Screw, Self Tapping Screw. Our excellent supply of world-class quality ... a good manufacturing partner as your need. Hex Machine Screw Nuts - Zinc, Coarse