FeaturesYellow PVC jacket, gold over nickel plated copper alloy contact, black epoxy coated zinc coupling nut1/2-20 end 1 threadThreaded coupling5.72 mm Dia cable, 1/2-20 UNF mounting threadM12 design meets IEC specificationsIndustry standard interface compatible with a wide array of sensors and switchesProvides a longer lasting, high performance electrical contactPrevents the coupler from loosening even under extreme vibrationHarsh duty receptacle