Zhejiang Aozhan Industrial Co., Ltd.   Contact Name:Henry Phone:86 571-82105889 Fax:86 571-82105893 Address:Zhenzhong Village, Dangwan Town, Xiaoshan, Hangzhou, Zhejiang Province Zipcode:311200 Email: Website: http://www.aozhan.com.cn DIN|IFI|SP| DIN product:Cap nutsDouble end studsHexagon head bolts and screwsHexagon head bolts and screws for use in structural steelworkHexagon nutsHexagon socket head screwsHexalobular socket head cap screwsMiscellaneous nutsPlain washersPrevailing torque type nutsSquare nuts IFI product:Plain WasherSquare and Hex Bolts and ScrewsSquare and Hex Nuts SP product:Lock RingsNutsOthersRods DIN 1587 Hexagon domed cap nuts