Gearbox bottom mounting bolt set, Norton 1934-57+(plain)

 Norton gearbox bottom mounting bolt set with plain nut similar to military for machines without centre stand.  A new Norton gearbox mounting bolt + nuts & washers for upright gear boxes. ZP Suit brazed frame Nortons from 1934 to approx 1957.  Covers all models ES2, 18, 19, 50, 500T,
Original Part Numbers:
3619; 9461;  A2/312; 18495 - gearbox bottom bolt and nut x1
A2/313 - Gearbox bottom bolt nut x1 (plain - not shaped to hold centre stand spring)
no part number - washer (correct size)
AKA 9461; A2/312 gearbox bottom mounting bolt and nut