HEX BOLTS Standard:DIN933,DIN931,ANSI,A307,DIN960/961 Class:2/5/8, 8.8/10.9/12.9 Surface:ZP,YZP,BLACK,PLAIN,...etc. Size:1/4"-3",1/4"-2",M6-M80 Hex bolts with standard of DIN933/931/961/960/ANSI/A307 are our main products.Our company have series of cold forming machines & hot forging machines and excellent technicist,so the products are produced in high-quality,which attract many customers.
