| Diagram | Fig. 15 — Engine Mountings, Spring Head Steady · ref 32 |
| Listed in parts books | 1975 |
Norton Nut, Self Locking
A self-locking nut used at engine mounting points and footpeg/brake pedal support plates on Norton machines.
This is a self-locking nut, catalog number 06-0438, showing up in the Norton parts books under a handful of figures - engine mountings and spring head steady, plus the support plates for the rider's footpegs and the rear brake pedal and linkage. It's a general-purpose fastener that turns up in more than one spot on the machine rather than being tied to a single job.
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Self-locking nuts like this one are used anywhere the factory wanted a fastener that wouldn't back off under vibration, which on a motorcycle is just about everywhere. Given where this one appears in the books, it's doing that job at engine mount points and around the footpeg and brake pedal hardware.
Our catalog record ties this one to 1975, but doesn't spell out an exact model. If you're matching this up to a specific bike, give us a call and we'll help confirm before you order.
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