 B Series Circular Panel Mount w/nut, 3 Pin XLR Female - Silver Pins / Nickel Finish Panel-mount female receptacle. Mounts with spanner nut from front of panels up to .4375 inches (11.11 mm) thick. Slot in threaded part of housing permits non-turn mounting. Requires 1.25-inch (31.75 mm) diameter minimum mounting hole. Spanner nut is die-cast zinc with satin nickel finish |