Norton gearbox top mounting bolt and nut, for upright gearbox (early prior to 1940). This is the earlier version of the bolt. The bolt is 2 3/8 inch long (overall length), fits an 5/8in hole and has no flat sides on the bolt head. The nut is 1 inch long and is 1in wide at the flange and 9/16in across the flats, 1/2 inch ID. Superseded by 9460 which was also the 1934 part number. Original Norton part numbers: 3617 - Gearbox suspension bolt 3618 - Gearbox suspension nut
