| Also known as | F4129 |
| Diagram | Fig. 11 — CHAINCASE AND CHAINS · ref 24 |
| Subsystem | fuel |
| Listed in parts books | 1960–1968, 1970–1971, 1974, 1976–1980 |
Styling unit screw (27/64 in. O. A.) front
A small Triumph styling/trim screw (27/64 in. O.A., front), PN 82-4129, also listed as F4129.
This is a small styling unit screw, listed in the parts books as 27/64 in. O.A. (overall length) on the front side. It shows up across a wide range of figures over the years - chaincase, gas tanks and twinseat, air cleaner and side panels, the nacelle headlamp and switch assembly - which tells you this is a general-purpose trim screw Triumph used in more than one spot rather than something tied to a single component.
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The older parts book number for this one is F4129, so if you're working from a catalog that predates the 82- numbering, that's the same screw. Given how many different assemblies call it out, the best way to confirm it's right for your application is to match it against the figure for the specific panel or badge you're reinstalling.
It's a cheap, easy part to keep a few of on hand, since trim screws like this have a habit of getting buggered up or going missing over the decades. Bring in the old one if you've got it and we can compare before you buy.
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