Hex Slotted Nuts Materials: carbon steel Surface: zinc-plated Size: 3, 4, 5, 6, 8, 10, 12, 14, 16, 18 and 20mm Hex ... , Dalian Leading Metal Ltd specialize in component fastener field includes nuts, bolts, washers, screws, pins, rivets, anchors per international ... according to customers drawing. Available raw materials cover carbon steel, stainless steel, brass, aluminum and so on.We also provide ...