MICRO SWITCH™ Specialty Large Basic Switches: BS Series, Single Pole Double Throw (SPDT), 20 A 125/250 Vac, Stainless Steel Pin Plunger, Adjusting Screw Bushing, 8-32 UNC Binding Head Combination Screw Termination with Cup Washers, Mounting Holes will Accept Pins or Screws, UL, CSA