Features:
1) Standard: DIN934.ASTM B18.2.2
2) M4 to M24:
a) Cold form
b) Material: mild steel,carbon steel,alloy steel,45#
3) M24 to M36:
a) Hot forging and machine cutting
b) Material: mild steel, SUS304, SUS316
4) Ring color: blue, green, white
Outer packing:
Carton or poly bag
Pallet