INDICATOR STEM SHORT (STAINLESS STEEL)

THREADS ON THE INDICATOR STEM ARE AS FOLLOWS:

THE END WHICH WOULD SCREW INTO THE HEADLAMP SHELL: 7/16" UNF x 1" LONG
THE THREAD ON THE END WHERE IT ATTACHES TO THE INDICATOR HEAD: 3/8" UNF X 3/4" LONG AND HAS TWO MACHINED FLATS ON.  
OVERALL LENGTH OF THE STEM: 3 3/4"

FOR LOCKING NUTS PLEASE SEE 20948S