Ningbo Long I Metal Industry Co., Ltd   Contact Name:Yang　Zhifeng Phone:86-574-86178209 Fax:86-574-86178210 Address:Xiaogan,Beilun,Ningbo,Zhejian,P.R.CHINA Zipcode:315821 Email: Website: http://www.allfasteners.cn/ DIN product:Cap nutsDouble end studsHexagon head bolts and screwsHexagon nutsHexagon socket head screwsOthers(added by suppliers)Prevailing torque type nutsSquare nutsThreaded barWeld nuts

DIN 1587 Hexagon domed cap nuts