| Diagram | Fig. 24 — HANDLEBAR — CONTROLS — FUEL TANK · ref 69 |
| Subsystem | controls |
| Listed in parts books | 1970–1972 |
NUT 5/16 UNF SHOULDERED
A 5/16 UNF shouldered nut used in Triumph handlebar control and petrol tank mounting assemblies.
This is a shouldered 5/16 UNF nut, the kind Triumph used where a fastener needs a defined stop point rather than just clamping down tight, like a control lever or a tank mounting point. It shows up in the parts book under handlebar controls and petrol tank fittings, so it's doing double duty across a couple of assemblies rather than being tied to one specific job.
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The shoulder on this nut means it seats to a set depth instead of just torquing down against the part it's holding, which keeps things like lever pivots or mounting studs from binding up when you tighten them. If you're chasing a nut off an older steel tank or off the control cluster on the bars, this is the type to look for.
Our catalog record ties this one to appearances from 1970 to 1972, but we'd confirm exact fitment against your bike before ordering since it turns up in more than one assembly.
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