Standard:ISO4014/ISO4017/DIN960/DIN961/DIN6914/DIN931/DIN933/DIN7990
Size:M6-M64
Grade: 4.8, 6.8, 8.8, 10.9, 12.9 
Finish: Plain,Black,ZP,YZP,HDG
Material:carbon steel,alloy steel


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.