Switchcraft B3M Male 3-Pin Round Metal Shell XLR Panel Mount

B3F Receptacle 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. B3M Receptacle Panel-mount male receptacle. Mounts with lock nut from front of panels up to .250-inch (6.35 mm) thick. Requires .812-inch (20.64 mm) diameter...