Stud, set securing magneto to crankcase, Norton twins ea >1956

Stud and nut for securing magneto to crankcase, Norton twins, later 1957+, each, stainless steel stud , ZP nut
Early models had same studs with larger nuts.
Original part numbers:
T2089; T2245; 067581 - bolt securing magneto to crankcase x 3
For nuts use: E3231 nut for bolt securing magneto to crankcase (later); E3223 -   early ;