... steel,Stainless Steel 304/316,or other steelSize:M6 - M42,1/4 - 1Length:50 - 500 mmThread:Metric,UNC,UNF,BSW,RDSurface: ... are a professional manufacturer engaged in the research, development, production and sale of wedge anchors,drop in anchors,tie wire anchors ... Japen,etc.We are looking forward to building long-term and cooperative relationships with overseas customers based on mutual benefits.Wedge ...