The BU-20431 is an insulated, plug-on hook plunger with a standard, right-angle 4mm banana jack. Useful for making test leads which use shrouded, unshrouded, or retractable 4mm banana plugs...
Mueller's BU-2741-R is an 8-32 threaded test probe to an unshrouded, right-angle 4mm banana plug. Constructed with EPDM rubber-jacketed, 18 AWG test lead wire.
The BU-P3452 is a dual pin tip plug with a shorting bar that mates with Mueller's BU-P4543 or any standard 0.080" pin jack. Internally shorted with 20 AWG wire.
