Quote:
Originally posted by alleramilitaria
how about this problem for all us people who have brit / canadian vehicles.
is the thread.....
SAE?
SAE fine?
BSW?
BSF?
metric?
pipe?
british pipe?
etc............. 
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Dave,
Regarding British vehicles, it depends on the manufacturer and period of build.
Your Morris Commercial would be BSF (British standard Fine), a superb thread, difficult to damage, not like ANF or UNF. There may be the odd BA screws usually used on electrical parts. Pipe threads would be BSP, often called"Gas thread". There may be some different threads on brake fittings but on the whole, this is it for a MCC.
Bedfords of the WW2 period used National Fine, with National course where screws entered castings, such as cylinder block. BSF may also be found, but possibly from when they were rebuilt as British bolts would have been more prevalent than NF at that time.
Metric did not start to be found on British mv's until around the 1980's, then Land Rovers were to be found with metric, UNF, and still a few BSF threads in the axles.
As a restorer of MV's, mostly WW2 period, I use mostly BSF, but of course, dependant on the actual vehicle.