... , designed accord to the conduit lock, equipped easily 1/2" SELF-FIXED CONNECTOR / JOINTS Thread SpecificationBS, Metric, PGMaterialA, C and F ... intensified zinc alloy, B and E part made of butyronitrile rubber, D is made of steel plateWorking temperature-40-- 100, 120 ... the thread specification accord to your special need. 1/2" SELF-FIXED CONNECTOR / JOINTS