We are officially metric but, of course, an awful lot of stuff is SAE, imperial or even British Standard pipe threads. The hardware stores carry metric and imperial and I'm sure go nuts with this sort of thing every day. I'm glad it worked out. Like the oldBN says hydraulic shops are a great source for oddball stuff. The local Parker shop adaped a BSP hot water tank to my new Yanmar fittings without too much cussing last year!