... ).Protection classification:Use the O-ring and Sealing Nut in the range of bayonet,protection class can be IP 68.Working temperature ... beautiful2,Waterproof ,dustproof,salt, acid, alcohol, grease and common solvents .Specification of thread: Metric,PG ,NPT ,G. brass screw plugConnecting threadScrew lengthODHightWrenchM14 ...