Heavy Duty Normally "Off" S.P.S.T. Non-corrosive construction. Gasket sealed case protects against moisture and dust. Brass case, stem, terminals and mounting hardware. Screw-on type chrome plated brass knob and face nut. Mounting stem: 1-1/4"L (3.18cm) x 3/8" dia (.95cm). Position: Off - On Circuits: 1. Rated: 6V-36V DC. Fits panel thru: 3/4" (1.91cm)