What's your favourite thread size?

[gazza285]

jackofall84 said:

I've changed my mind, after having to torque up 180 1-1/4" bolts yesterday to 700Nm, I just like any size that only requires torquing to 150Nm...my arms are in agony this morning!

Hire one of these next time.

[jackofall84]

gazza285 said:

Hire one of these next time.

I will be for the remaining pipe flange bolts, unfortunately 3 of the flanges do not have enough clearance between the flange face and the tank to get a gun in, so it was down to a good old fashioned torque wrench and heaving!

[Huntsman]

I need a bolt for the Jag, looks 1/4", so I delved into my 1/4" UNF drawer, but found its not that pitch, which got me to thinking it looks fine, defo not unc or whitworth, so maybe its bsf. I was about to order a 1/4" bsf bolt from ebay when it struck me that since its the clamp bolt on a Lucas distributor and I think its a Lucas part rather than a Jag part that it might be 0BA which is almost M6.

So further investigation needed, will have to get out my thread pitch guages.

[Wacky Racer]

Half inch UNF, standard for air rifle silencers.

[Spydaman]

Has anyone mentioned CEI cycle thread yet. The same 26 tpi for everything from 1/4” to 1”

[Huntsman]

Spydaman said:

Has anyone mentioned CEI cycle thread yet. The same 26 tpi for everything from 1/4” to 1”

Interestingly cycle threads have never really been on my radar, although I'm aware of them.

[Spare tyre]

Anything over 20 pages

[jimPH]

jackofall84 said:

Gary C said:

13mm every time.

It's almost 1/2" so you can use either spanner

Are you pulling my leg? There's no standard M13, I mean M14 exists but it's not a preferred size, an M12 is 19 A/F though and a 1/2" is 3/4 across the flats so you could probably get away with a 3/4 spanner on an M12 bolt and a 19mm spanner on a 1/2" bolt.

M8 is a 13mm hex.

I like an M6 though and most 3/8 will fit that too.

[Bacon Is Proof]

For the love of god, why resurrect such an awful thread? Let it die.

M6x0.5
A fine looking thread.

[Tango13]

Huntsman said:

I need a bolt for the Jag, looks 1/4", so I delved into my 1/4" UNF drawer, but found its not that pitch, which got me to thinking it looks fine, defo not unc or whitworth, so maybe its bsf. I was about to order a 1/4" bsf bolt from ebay when it struck me that since its the clamp bolt on a Lucas distributor and I think its a Lucas part rather than a Jag part that it might be 0BA which is almost M6.

So further investigation needed, will have to get out my thread pitch guages.

Jaguars tooling was probably so knackered it could be anything.

If you're planning on keeping the car then carefully drill out all the threads and carefully hellicoil them, a correctly fitted helicoil is true engineering porn.

If you're not planning on keeping the car just helicoil the one thread to confuse the next owner

I had to thread some left hand M2.5 into EN36 blind the other week, I fking hate M2.5 anyway but as it turns out the boss hates M2.5 too and as he's in charge he delegated.

If I had been in charge I would've delegated too so I can't blame him.

[gazza285]

Spydaman said:

Has anyone mentioned CEI cycle thread yet. The same 26 tpi for everything from 1/4” to 1”

So how come pedals are 20tpi?

[808 Estate]

PG21

[Onelastattempt]

Vam top, used to have to machine one about every two weeks in Inconel, I took a lot of pleasure getting it just right.

[Spydaman]

gazza285 said:

Spydaman said:

Has anyone mentioned CEI cycle thread yet. The same 26 tpi for everything from 1/4” to 1”

So how come pedals are 20tpi?

I don’t know.

[Tlandcruiser]

M8

So many uses, small but strong enough

[rfisher]

Interestingly, the longest thread on PH is the Liverpooooool FC one running at Vol 19 currently.

Which is nice.

That's 19 x 500 x 20 = 190,000 things that PH users have felt obliged to say about Liverpoooooool FC.

[Genius Paul Whitehouse]Football isn't it.[/Genius Paul Whitehouse]

Edited because I couldn't be arsed to even think about how much was too much when it came to working out the approximate number of posts there are on PH about Liverpooooooool FC

Edited by rfisher on Monday 27th December 20:17

[anonymous-user]

rfisher said:

Interestingly, the longest thread on PH is the Liverpooooool FC one running at Vol 19 currently.

Which is nice.

That's 19 x 500 x 20 = 190,000 things that PH users have felt obliged to say about Liverpoooooool FC.

[Genius Paul Whitehouse]Football isn't it.[/Genius Paul Whitehouse]

The Trivial thread is currently on Vol 38, or 380,000 hand crafted individually typed uniquely written posts - showing the excitement and bonhomie of composing a dubious and inconsequential hand job on there actually beats Formula 1 football.

Edited by anonymous-user on Monday 27th December 21:15

[CoupeKid]

I’m my first engineering job I wanted to use 35mm rods because I’d calculated that that was the right diameter for the amount of stress and it was a standard PTFE bearing size. One problem - I also wanted to put a thread on the rod.

No problem said the chief draughtsman - just specify a M35 thread and design your own nut. The machinists will make it for you.

[eldar]

Bacon Is Proof said:

For the love of god, why resurrect such an awful thread? Let it die.

M6x0.5
A fine looking thread.

Tapping the mood here.

[mickk]

rfisher said:

Interestingly, the longest thread on PH is the Liverpooooool FC one running at Vol 19 currently.

Which is nice.

That's 19 x 500 x 20 = 190,000 things that PH users have felt obliged to say about Liverpoooooool FC.

[Genius Paul Whitehouse]Football isn't it.[/Genius Paul Whitehouse]

It maybe the longest but have you actually read the absolute bks they go on about?