1.Standard: F436.
2.Grade: Hardened Washers, need Heat Treatment.
3.Size: M12-M76, 1/2"-3".
4.Material: Carbon Steel,1045 Steel.
1.Standard:ASME B18.22.1 1965(R 1998),DIN125.
2.Grade:Gr.4.8, Gr.5,Gr.8.8.
3.Size: M12-M76, 1/2"-3".
4.Material: Carbon Steel.