MICRO SWITCH™ Premium Large Basic Switches: BZ Series, Single Pole Double Throw (SPDT), 15 A 125/250 Vac, 12,7 mm [0.50 in] Threaded Bushing with 8,3 mm [0.326 in] Diameter Hardened Steel Additional Overtravel Plunger, Binding Head Combination Screw Termination, Manual Reset on Bottom of Case, Bushing Hardware Furnished Unassembled in 1PA2 Packet, Mounting Holes will Accept Pins or Screws, UL, CSA