At 07:02 26/12/2006, you wrote: Harry, BSB (brass) taps & dies (55 degree) are availabe from <http://www.drill-service.co.uk/>Drill Service, see http://www.drill-service.co.uk/threading-tools/BSB-Taps-and-Dies.htm BSC (cycle) taps & dies (60 degree) are available from <http://www.rdgtools.co.uk/>RDG tools, see http://www.rdgtools.co.uk/acatalog/BSCY___CYCLE___26TPI_TAPS_AND_DIES.html HTH Edward >From: "TEL" <tel@xxxxxxxxxxx> >Subject: [modeleng] Re: Mystery thread >Date: Tue, 26 Dec 2006 11:34:07 +1100 > >It's a standard Brass thread Harry - all 26 tpi. > > >> Gents, >> I have been asked to test and cerify a boiler (LBSC Bantam Cock) and the >> pump connection bushing is a 3/8-26 thread. This isn't a standard thread >> for anyone . . . even Tracy Tools lists it as a special. What in the world >> thread series does this come from? Is this one of those cycle threads I >> always heard about? >> I also hope everyone has had a very pleasant and safe holiday. >> >> >> Regards, >> Harry Wade >> Nashville Tennessee >> >> MODEL ENGINEERING DISCUSSION LIST. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.