What is the standard threading for plumbing parts in the UK - Is is 26 TPI?
http://www.newmantools.com/taps/bsp.htm
Ta.
Now where can I get one of these in copper or steel - preferably 22mm (ish) outer diamter.
@freezing77 started
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What is the standard threading for plumbing parts in the UK - Is is 26 TPI?