Standard: F436
Grade: Hardened Washers, need Heat Treatment
Size: M12-M76, 1/2"-3"
Material: Carbon Steel,1045 Steel

Standard: DIN125
Grade: Gr.4.8, Gr.5,Gr.8.8
Size: M12-M76, 1/2"-3"
Material: Carbon Steel
Surface: black,zinc yellow, HDG,plain
Packing:standard export packing or according to your demand