... Screw Co.,Ltd is one of the leading China sleeve anchors manufacturers and suppliers,Website:http://www.zhenyafastener.com ... , hex nut, flat, countersunk, and round head. Sleeve anchors are available in stainless steel for outdoor, wet ... to heavy duty fastening.Hex Nut & Washer style Sleeve Anchor AnchorsSLEEVE ANCHORS, HEX HEAD A X LHFWSRequired ...