| Diagram | Fig. 31 — REAR CARRIER, SHORT SEAT, SAFETY BARS (TO ORDER ONLY) · ref 22 |
| Subsystem | bodywork |
| Listed in parts books | 1969–1970 |
BSA Bolt, rear bracket to seat (5/16" British Standard Cycle × 1 1/2")
A 5/16 inch BSC by 1 1/2 inch bolt that fastens the rear carrier bracket to the seat.
This is a bolt used to attach the rear carrier bracket to the seat, sized 5/16 inch British Standard Cycle thread by 1 1/2 inches long. The catalog places it in the rear carrier, short seat, and safety bars figures, so it's part of the hardware that ties the luggage rack or safety bars to the seat mounting point at the back of the bike.
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The part shows up under the number 15-1355 in the two catalog listings we have, both from 1969 and 1970. That's a narrow window, so if your machine falls outside those years, check the thread and length against what's actually on your bike before ordering.
It's a small, plain fastener, but BSC threads aren't the same as the UNF or metric hardware you'll find at a regular hardware store, so it's worth sourcing the correct one rather than substituting something close.
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