... /A106, ST37-2EN10241, BS1387, ISO7-1,DIN2999, DIN2986SpecificationFull socket, Half socketSurfaceHot dipped galvanized,Cold galvanized, BlackSize1/8"---6"GradeHeavy ... , ITS, BSI,Hebei, China screw threaded sleeve, Socket and half socket,equal,type mediumNominal Size Minimum Outside diameter of socketOverall ... 07198.4341004"121.483124401255"146.392149441506"173.39217744 straight sleeve connecting sleeve