Marinco CLMMRS-AX CLM Cam Type, Mini Panel Mount, 150 Amp, 600 Volt, 3/4" threaded stud, Male - Black (A) CL panel mount devices are constructed of super tough nylon housing which will not chip or crack under extreme temperatures and impact conditions. Constructed of solid weatherproof materials, UL listed, CSA listed, NEMA 3R/4 rated when mated with a shrouded device All CLM products mate precisely with all other manufacturers' cam products