From RS Pro, these threaded plugs and sockets are serious contenders for your application. This particular model has a bigger and stronger shell. That coupled with the IP68 rating excels in harsh environments. When choosing a male or female connector, this version should really be one you consider.

2, 3, 4, 5, 7,9, 10 and 12 way available
Solder contact termination
High-quality Nylon66 shell
Panel hole cutout diameter: 17 mm

This product may be provided in an all-black or black and blue variant