nut ,hex nut , flange nut , nylon insert nut , slotted nut , round nut ,wing nut , eye nut ,lock nut and other special nut Materials: carbon steel, alloy steel, stainless steel, brass and ... , YP and HDG, Dacaromet Size range: M4 to M30 made of cold forging, from M33 to M100 made of hot-forming Standards: DIN ...