| Also known as | F3805 |
| Diagram | Fig. 14 — ENGINE UNIT FITTINGS AND FOOTRESTS · ref 27 |
| Subsystem | frame |
| Listed in parts books | 1964–1965, 1967–1968 |
Bolt (1 1/4 in. UH.)
A 1 1/4 in. UH bolt (Triumph 82-3805 / F3805) used in engine unit fittings and footrest mounting hardware.
This is a 1 1/4 in. bolt (under-head length, per the catalog spec) listed under Triumph part number 82-3805, with F3805 as the earlier form of the same number. It shows up in the parts book under Engine Unit Fittings and Footrests, so it's one of the fasteners used to secure engine mounting points or footrest hardware to the frame.
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Catalog appearances for this bolt run from 1964 to 1968, which tells us it was in the fittings lineup across that stretch, though we don't have it tied to one specific model here. If you're replacing one, match it up against the fastener you're pulling before you order to make sure the length and thread are right for your application.
Common sense at the counter: fittings bolts like this get reused across a lot of frame and engine-mount points, so don't just go by the figure title alone — check it against the actual bolt coming out of your bike.
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