Stud, holds exhaust pipe off motor, 7/16 in, Norton singles 1949+[ no side stand]

Exhaust pipe attachment bolt, front bottom engine plate bolt , 7/16 inch x approx 5 3/4 inch long for all Norton singles 1949 to 1955?
Original part number:
14810 - exhaust pipe attachment bolt
E3285 - exhaust pipe attachment bolt nut
E5375 - exhaust pipe attachment bolt washer