... / joints, designed accord to the conduit lock, equipped easily 1/2" SELF-FIXED CONNECTOR / JOINTS Thread SpecificationBS, Metric, PGMaterialA, C and ... Intensified zinc alloy, beautiful appearance, compact structure, high intensity.2. Designed strictly accord to the conduit lock, equipped easily, powerful ... Change the thread specification accord to your special need. 1/2" SELF-FIXED CONNECTOR / JOINTS