Duplex Bulge Acorn Stainless Steel Capped Nut (HN001L-SS) Yangzhou Haina Auto Parts Manufacturing Co., Ltd. Base Info Model NO.:HN001L-SSMaterial:Carbon SteelType:Hexagon HeadStandard:GBGrade:8.8Origin:China Description Pre:Long Mag W/Attached Washer Nut (HN-016) Next:Open End Nut Hex19mm (1802)