| Also known as | F4531 |
| Diagram | Fig. 16 — MUDGUARDS AND NUMBER PLATES · ref 25 |
| Subsystem | bodywork |
| Listed in parts books | 1963–1964 |
Bolt (1 1/8 in. U.H.)
A 1 1/8 in. U.H. bolt used in mudguard and number plate mounting, also known by its older F4531 designation.
This is a bolt used in the mudguard and number plate assembly, listed in the parts book by its length under the head: 1 1/8 in. U.H. It shows up under the older F4531 designation as well, so if your parts book from the early '60s still uses letter-prefix numbers, that's the same fastener.
Read more
Catalog appearances put it in mudguard and number plate work from the 1963-1964 period. It's a plain mounting bolt rather than anything specialized, the kind of hardware that holds brackets and plates in place rather than doing any structural or moving-part job.
If you're replacing one, check the thread and length against what's actually on the bike before ordering, since mudguard hardware varies by model year and by which bracket it's securing.
Sorry if we got something wrong here. If you think this information isn't correct, .