Hex Nut 1. cheap price and fast delivery with high quality 2. many kinds of material and finish can be selected Grade 5 Black Hex nut 1). Size:M3-M64; 1/8"- 2-1/2"2). Grade:53). Material:stainless steel, carbon steel4). Treatment:Plain, hot dip galvanizing, Phosphated, Zinc, Nickel, Dacromet, black oxide5). Standards:DIN 934, ANSI 18.2.2 and so on6). Package:small boxes, plastic bags, Bulk in ...