... strength:594Mpa(Min) 3.Standard type:D14-D40mm Steel bar straight-thread connecting sleeve1.Material:45# steel2.Tensile strength:594Mpa(Min)3 ... .Standard type:D14-D40mm4.Thread Angle:75°/ 60°5.Screw 2.5, 3, 4 Baoding ... ,machine parts,pipefittings,hardware,etc.Our products have been exported to US,Canada,UK,France,Germany,Russia,Italy,Poland,Denmark,Singapore ...