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From: Jason Rogers <gasdive@sy*.DI*.oz*.au*>
Subject: Re: DIN Thread Size
To: techdiver@terra.net
Date: Tue, 28 Nov 1995 17:53:05 +1100 (EST)

Hi,

I tend to agree with George, but then again, in practice, I have tapped
out a damaged thread, then hydroed it to 500 bar (7250 psi) and it
held up Ok.  Depends on if it is "bad" or "not too bad" which is a
judgement call.

Anyway, the tap you need is a standard 5/8 BSP (British Standard Pipe)
parallel, which here at least, is an off the shelf item.  Don't get
the taper by mistake ;)  It's called BSPT.

Cheers Jason =:)

PS isn't 477 the O2/nitrox fitting?

PPS Careful you don't get some funny american tap into it.  The
pitch is the same (14 tpi) as some american threads, but the
thread form is different (55 vs 60 degrees)

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