brass screw plug waterproof IP68, CE, RoHS standard material:brass with nickel plated/brass factory direct sales Product material: high-quality nickel-plated brass.Color: Metallic color.Protection classification:Use the O-ring and Sealing Nut in the range of bayonet,protection class can be IP 68.Working temperature: -40°C~+110°C,instantly can be +120°C.Property:1,plug the extra or reserved holes ,to make the product beautiful.2,Waterproof ,dustproof,salt, acid, alcohol, grease and common solvents .Specification of thread: Metric,PG ,NPT ,G. 

brass screw plug ( round,hexagonal )
Connecting thread	Screw length	OD	Hight	Wrench
M14×1.5	6	14	9	16
M18×1.5	7	18	10	20
M22×1.5	8	22	11	24
M24×1.5	9	24	12	27
M27×2	10	27	14	30
M30×2	11	30	15	32
M33×2	11	33	15	36
M36×2	11	36	15	40
M42×2	11	42	15	48