MICRO SWITCH™ Premium Large Basic Switches: BA and BE Series Accessory, Panel Mount Mounting Bracket, 43 mm [1.69 in] 11,9 mm [0.470 in] Threaded Bushing with 7,9 mm [0.31 in] Diameter Additional Overtravel Plunger Actuator, For Use with Pin Plunger BA and BE Series Basic Switches, Mounting and Bushing Hardware Furnished Unassembled