... zinc alloy 1/2" MALE CONNECTOR / JOINTS for explosion proof purpose Thread SpecificationBS, Metric, PGMaterialA, C and F part ... gradeIP65Characteristics1. Intensified zinc alloy, beautiful appearance, compact structure, high intensity.2. Designed strictly accord to the conduit lock ... , dustproof, acid-bases durable, alcohol, oil tallow and common solvent proof.4. Change the thread specification accord ...