PART NUMBER 65-0317 IS A ROCKER FEED BOLT TO SUIT THE FOLLOWING :-
BSA A7/A10 INLET AND EXHAUST
BSA B31/B33 INLET AND EXHAUST
BSA CB32/34 INLET ONLY
BSA DB32/34 INLET ONLY
BSA DBD32/34 INLET ONLY
I HAD THESE MADE BY MY ENGINEER A FEW YEARS AGO TO EXACTING STANDARDS,THEY ARE ABSOLUTE REPLICAS OF THE ORIGINAL PART.