SAE - Society of Automobile Engineers
these are the guys that created all the standards for automobiles.
most (probably 99% of those used) fine thread bolts are made to SAE
standards.
--- "Bowen, Patrick A RP2" <PABowen@sar.med.navy.mil> wrote:
>
> So tell me exactly how SAE threads work into this. And how come I
> can't
> find taps and dies for them at a hardware store but can find some
> at NAPA.
>
> Whats the difference
>
> Patrick Bowen
>
> -----Original Message-----
> From: John Cave [mailto:cavej@mcmaster.ca]
> Sent: Wednesday, March 08, 2000 3:38 PM
> To: Mitchell, Douglas (D.B.)
> Cc: Spitfire List
> Subject: Re: Oil Pressure Sensors Thread size + B.A.
>
>
>
> there is also B.A. threads= British Association Standard Thread
> used for
> threads smaller than 1\4 inch Lucas and Smiths would have used them
> on their
> early instruments.
> John Cave
>
> "Mitchell, Douglas (D.B.)" wrote:
>
> > > -----Original Message-----
> > > From: Terry L. Thompson [mailto:tlt@digex.net]
> > > Sent: Wednesday, March 08, 2000 2:06 PM
> > > To: spitfires@autox.team.net
> > > Subject: Re: Oil Pressure Sensors Thread size
> >
> > [stuff snipped]
> >
> > > Does anyone know what the thread size and type (NPT, BSF,
> > > etc.) is on the
> > > Spitfire oil pressure inlet on the block? Anyone got their
> > > bentley/haynes/workshop
> > > manual with them?
> >
> > 1/4 inch NPTF
> >
> > >
> > > Just for everyone's edification:
> > > NPT = National Pipe Thread (U.S. standard meets ANSI/ASME
> B1.20.1-1983
> > > specified
> > > by most US manufacturers)
> > > BSW = British Standard Whitworth System (Euro/australian
> > > standard screw
> > > thread)
> > > BSF = British Standard Fine (Euro/australian tapered fine
> thread)
> > > BSP = British Standard Pipe (European and Australian Pipe
> thread)
> > >
> >
> > Doug Mitchell
> > mailto:dmitchel@ismi.net
> > mailto:dmitchel@ford.com
> > '73 Spitfire 1500
>
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