Standard: DIN6921
Size:M6-M12
Grade:8.8,10.9
Material:carbon steel,Alloy steel.
Finish:Black, Z/P,YZP

Our main products include DIN,ISO, IFI,ASTM,standard bolts,such as DIN931,933,960,961,912,7991,6914,6921,558,ISO4017,4014, IFIA-10(UNC,UNF),ASTM A325, etc.The size is from M6-M64.The grade includes 4.8, 6.8, 8.8, 10.9, 12.9. 5,8,10.  The material is carbon steel and alloy steel