Oh, for sure! P100, or bust.N95 or better
Arseholes. As it offered the country selection and was on the .com site I thought it was worldwide.
That's correct, and BSF is British Standard Fine. Which is the fine version of Whitworth in the same way UNF is to UNC. Because British.That is the greatest chart ever.
What does BSW and BSF stand for? I'm assuming BSW is British Standard Whitworth, but that would be a guess.