Flush Nuts Shenzhen Daking Industry Co., Ltd. Base Info Model NO.:F-M3-2Material:Stainless SteelType:Hexagon HeadConnection:Common BoltHead Style:HexagonalStandard:PemGrade:PemStaineless Steel Thread M2-M6 or #2-#1/4:Pem Standard Description Pre:Studs Next:SGS Approved Stainless Steel Carriage Bolt (HSS-003) /DIN603