This is M16 threads male mated female connector, with waterproof grade IP67 even IP68. The male connector is adapter that is in-line type mating to panel female socket only. The female connector is a panel mount type socket that is rear panel mount. 

• Contacts:2 PIN 
• Plastic Material: Nylon PA66
• Metal Material: gilded brass
• O-ring/cable gland: silicone rubber
• Connector Type: Panel Mount
• Connection Type: Solder Lugs
• Rated Voltage: 300V
• Rated Current: 10A
• Wire Gauge: ≤1.0mm²
• Cable Jacket OD: 2.6-7.5mm
• Certificate: ISO/CE/ROHS/UL

2 PIN Male Connector

AH-M16-1002MMZ01112

2PIN Female Connector

AH-M16-1002FFR01112

Components: 

male core, coupling nut, O-ring, enclosure

cable gland, waterproof nut.

   Components: 

   female core, gasket, hex-nut

Male:

1. Take down the waterproof nut, cable gland, and enclosure;
2. Run the cable through the waterproof nut, cable gland and enclosure orderly;
3. Weld the wire on solder lugs of male core;
4. Assembly components.

Famle:

• Take of hex-nut, gasket;
• Run the cable through hex-nut, panel hole, gasket from box side;
• Weld the wire on solder plugs of female core;
• Assembly hen-nut and tighten up it on the panel.

The male connector insert to the female, mating. That is assembly finished.