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Well, got the mini set of BSF tap and dies in. Working good on cleaning things up.
So far just using 2 sizes.

Later 42rocker

Ordered a 3/16 to 3/4 inch BSF tap and die set to help out restoring some more Bren Tripods I just got in.

Such Fun.

Later 42rocker

Thank you for the idea of making your own cleaning "tap". Problem on it is that it seems all of the threads on a Bren Tripod are BSF. Well walking out to my garage might produce 500 to 1,000...

What threads are damaged? Well to start with only one area. Personally I like to chase the threads trying to clean them out of grease and such stuff. The major problem in the Bren Tripod is the pin...

After spending a few hours finding and reviewing diagrams, I find that the specs always have BSF sizing.
Therefore I Thank all for reviewing my help request and can offer the above BSF statement. ...

Well said, but what is correct? Your help please.

Later 42rocker

A general question. What threading system was used on the Bren Tripods? S.A.E. or Withworth or BSW or ??
Area I'm working on are the leg pin threads. It seems that they are 14 tpi. Dia .625 inch or...