Zyp Alloy Steel ISO 4032 Hex Nuts/Hexagon Nuts Ningbo Huizone Fastener Co., Ltd. Base Info Material:High Strength SteelType:Hexagon HeadConnection:Common BoltHead Style:HexagonalStandard:ISOTrademark:NHZTransport Package:25kgs CartonSpecification:M6-M100Origin:ChinaHS Code:7318160000 Description Pre:Black Oxide Alloy Steel ISO 4032 Hex Nuts/Hexagon Nuts Next:Dn500 Stainless Steel Round Tank Manways