TONFUL DT SERIES CONNECTOR is made of PA66 nylon, this material has a certain thermostability, and make the plugs durable wear-resisting. Applied with the good quality rubber seal to make it better dustproof and waterproof. Optional in-line, flange, or PCB mount. It most use for marine, car, truck, boat, motorcycle, and other wire connections. DT electrical connectors will stand up to the harsh environmental challenges that are common to industrial markets that require advanced performance. Proper parts, procedures, and tooling must be used.