| Also known as | H426 |
| Diagram | Fig. 14 — ENGINE UNIT FITTINGS AND FOOTRESTS · ref 21 |
| Subsystem | frame |
| Listed in parts books | 1960–1962, 1964–1968 |
Bolt (3/4 in. U.H.)
A 3/4 inch under-head bolt (Triumph 97-0426, formerly H426) used across several engine fitting, footrest, and bracket mounting points.
This is a 3/4 inch under-head bolt, Triumph part number 97-0426, also known by its earlier alias H426. It's a general-purpose fastener that turns up across a handful of different figures in the parts books - engine unit fittings and footrests, exhaust pipe and undershield mounting on the T100C, and even alongside the ignition coil and rectifier bracketry - which tells you Triumph used this bolt wherever a 3/4 inch U.H. length got the job done rather than reserving it for one single mounting point.
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Because it shows up in so many different assemblies across our catalog records, the safest way to buy this one is by the dimension rather than by guessing at which specific bracket or fitting you're working on. If you've got the old part number H426 in your book, that's the same bolt under the earlier naming.
Given how many places this bolt fits across the model range in our records, it's worth keeping a couple in the parts bin - footrest fittings, exhaust brackets, and electrical component mounts all seem to call for it at one time or another. Call the shop if you want to confirm it's the right one for the specific spot you're replacing it on.
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