... nuts 1.Surface:black,ZP,plain... 2.Size:M3-M24 3.Material:Carbon Steel, ... 4.Grade:4.8.5.8.8. DIN934 black hex nuts Product nameDIN934 black hex nuts MaterialMild Steel,carbon steel,ss,brass ... to customer`s requirement MOQ500kgs Supply Abality200tons per month DIN934 black hex nuts