1. Standard: DIN6915, A563 Nuts
2. Grade: DIN 6915 Gr. 8, 10, 12, A563 Gr. A--Gr. DH
3. Size: DIN6915 M12--M80
4. Surface: Plain, Black, ZP, ZY, H. D. G. etc.
5. Material: Stainless steel, alloy steel, carbon steel
6. Packaging: 25kgs per box, 36 boxes per pallet