M8 Waterproof 4-Pin Cable End Male and Female Connectors (Dual Knurled Screw and Nut)

M8 waterproof 4-pin male and female connector set, featuring a dual knurled screw and nut design. The knurled threads provide a non-slip grip, making tightening smoother and ensuring a stronger locking force. This effectively prevents loosening and back-screwing in vibrating equipment environments. An integrated high-seal waterproof O-ring ensures an IP67 protection rating upon connection, providing effective dust and water resistance as well as oil resistance, making it suitable for outdoor and industrial environments with high humidity and dust. The gold-plated contacts offer excellent contact performance, stable conductivity, and strong interference resistance, withstanding extreme temperatures and repeated mating cycles. Simple overall assembly and convenient wiring, combined with a sturdy and durable housing, make these connectors widely used for waterproof and reliable circuit connections in industrial automation, precision sensors, and industrial control equipment.