1. bolt and nuts 2.Certification:ISO9001:2008 3.famous brand factory in china ... ,DIN985,DIN960,DIN961,DIN7990,DIN555 ETCFasteners include hexagon head bolts, hexagon head bolts for T-slot, cup head square neck bolt, ... ,GB,JIS,ANSI/ASMEUse:It is Widely used in aerospace, energy, electrical appliances, electronics, machinery, chemicals, metallurgy, automobile and other industries bolts and nuts screws