Thread pitch?

Got something to say, but it's not classic related? Here's the place to discuss. Also includes the once ever-so-popular word association thread... (although we've had to start from scratch with it - sorry!)
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sierra3dr
Posts: 453
Joined: Fri Feb 11, 2011 10:20 am

Re: Thread pitch?

#11 Post by sierra3dr »

suffolkpete wrote:I would say 3/8 UNC. UNC is 16 TPI, BSF 20 and UNF 24
I was hoping BSP
Luxobarge wrote:I've no idea regarding the answer, but may I just say that's a very good photo! Couldn't be clearer.
Ta,taken from my Nokia N8 with macro settings
Luxobarge wrote:What is it for?
For my Welding gas bottle. The bottle toppled over on the back of the trolley welder. Yes I know,I should have had a strap to hold it in place. I have a chain now,to stop it wobbling about
Martin Evans wrote:I can recommend a Zeus Book for things like this - http://www.tooled-up.com/Product.asp?PI ... tAodUBYAkw.
Interesting,thanks Martin
TerryG wrote:I can't resist any more.
It doesn't matter what thread it is, it's screwed.

I'll get my coat.
Oh dear,don't get your coat,suffer with the cold for telling jokes like that ;) :)
Martin Evans wrote:You'd better make a bolt for the door :oops: :!:
It gets worse :? :)
JPB wrote:It is tapered isn't it? Looks like an oil pressure sender to me, the pot type that goes with a remote instrument head. Same thread as the one I posted if you count the threads, and that's to fit a capillary to a Saab/Triumph IL4 or V8 oil pump.
:mrgreen: I love your efforts on what it is
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suffolkpete
Posts: 1141
Joined: Sun Jan 23, 2011 11:54 am

Re: Thread pitch?

#12 Post by suffolkpete »

Looksrather a coarse pitch for BSP. Could be an NPT thread.
1974 Rover 2200 SC
1982 Matra Murena 1.6
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OneCarefulOwner
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Re: Thread pitch?

#13 Post by OneCarefulOwner »

I actually have (or had) an app on my phone for this, have you looked to see if someone's made one for yours?
…that's why Allegro will look as good 5 years from now as it does today.
If I was allowed a sigpic, this would be it
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JPB
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Re: Thread pitch?

#14 Post by JPB »

For that to work, the o/p would need to have shown the units of measurement, hence my comparison with a similar thread that was given some sense of scale. The dearest camera in the world wouldn't tell us what the units are when none is visible, that could be the Inch, the mm, the chain or the fathom. :P

It's clearly tapered though, the fact that the taper is visible and that it's for a pressure fitting suggest that much.

Buy a rule with its units marked on. :?
J
"Home is where you park it", so the saying goes. That may yet come true.. :oops:
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jimmyybob
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Joined: Wed Jan 05, 2011 8:59 pm

Re: Thread pitch?

#15 Post by jimmyybob »

If its for gas bottles its either BSP (looks a bit course for that) or NPT.
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Young Farmer
Posts: 151
Joined: Wed Jan 26, 2011 8:27 pm

Re: Thread pitch?

#16 Post by Young Farmer »

I think it is 3/8 BSP if its for a gas bottle. Most airline fittings are 1/4BSP so if you have an airline compare the two. Most plumbers should be able to help you
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alf892
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Joined: Fri Aug 26, 2011 7:23 pm

Re: Thread pitch?

#17 Post by alf892 »

it is clearly UNF

Un nown fred
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sierra3dr
Posts: 453
Joined: Fri Feb 11, 2011 10:20 am

Re: Thread pitch?

#18 Post by sierra3dr »

I decide to call the manufacturer of the gas regulator,and I was told that they use 3/4" bsp gauges
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