... ,ASME B 18.2.6 (ASTMA325,A490), JISB1186 AS1252Grade:8.8S, 10.9S , Size:M12-M36 Material:Carbon Steel ... Treatment: HDG, Zinc, Black... Carbon steel: Grade/class 4.8, 5.8, 8.8, 10.9, 12.9... Stainless steel: SS201, SS304, SS316 ... *57 25/32-2.13/64 M22*65 7/8-2.11/20 M24*75 15/16-3 Above ... thank you and look forward to the co-operation with you. Segment Bolt&Nut for Excavator&Bulldozer with CE certifation