... NUT 1.Material:ss ,Q235 2.Finish:white zinc, color zinc,black, 3.Size:M2-M90 4.Grade:4,6 ... ,8,10 din 934 standard zinc hex nut High quality Din934 zinc steel ... the best serve for you with the good quality and competitive price. Material Finish Grade Packing StandardSteel ... Zinc plate,black oxide, 4.8 Carton DIN933stainess steel Plain fnish 6.8 ...