19-04-2021, 10:21 PM
(This post was last modified: 19-04-2021, 10:37 PM by Stuart Giles.
Edit Reason: typo
)
Most threads on A7s are BSF, there are some on the motor which are the coarser BSW -AKA Whitworth threads-. There are some finer than BSF threads on the car too; usually 16 Threads Per Inch (TPI) Whitworth Form -AKA WF- e.g. hubs, radius arms etc. The electrical stuff uses BA (British Association) threads. Whitworth spanners also fit BSF bolts/nuts as said. If your location in Oregon is accurate, Brit Bike specialists should have the stuff you need on your side of the pond.
Finally, UNC threaded fasteners will usually sort of fit Whitworth holes. However, the thread form is different even when the TPI count is the same and the mixed fasteners will never grip with full strength. I ended up discarding pretty much a bucketful of UNC fasteners when I did some work on a repatriated MG T type a while ago.
Finally, UNC threaded fasteners will usually sort of fit Whitworth holes. However, the thread form is different even when the TPI count is the same and the mixed fasteners will never grip with full strength. I ended up discarding pretty much a bucketful of UNC fasteners when I did some work on a repatriated MG T type a while ago.