| Also known as | F12508 |
| Diagram | Fig. 36 — HEADLAMP AND FLASHER LAMPS · ref 38 |
| Subsystem | electrical |
| Listed in parts books | 1971–1972, 1974, 1976–1980, 1983, 1985 |
Shoulder screw
A shoulder screw used in electrical mounting points such as headlamp, flasher, and battery box fittings.
This is a shoulder screw, part number 83-2508 (also listed under the older F12508 number). It shows up in the parts books alongside the headlamp and flasher lamp assemblies, the general electrical components listings, and the battery and TR6C headlamp figure, which points to duty holding electrical components in place rather than anything in the engine or drivetrain.
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A shoulder screw has a plain, unthreaded section behind the head that lets it act as a locating pivot or spacer while the threaded tip does the clamping, which is a common way to mount lamp brackets, flasher units, or battery carriers without the fastener binding as it's tightened. Given the figures it appears in, this one is doing that kind of job somewhere in the electrical fittings.
Our catalog record doesn't spell out an exact mounting point or which specific bracket it pairs with, so if you're chasing a broken or missing one, it's worth confirming against what you're pulling it from before you order.
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