Numax terminal thread size please!

[wkel50]

I have looked, asked n surfed for the thread size on a dual terminal Numax xv31mf leisure battery but no one seems to know or won't let on?
I think it is American imperial thread but need a couple of wing nuts to fit.
Anyone here got a clue pleeeaazze.....

 

[aba]

hi you could always pop along to a local engineers workshop they sometimes have a gauge that tells what it is or failing that they may be able to re-thread the studs to something more common.
from memory its quite a coarse thread.

 

[big map]

Hi.
If it's a coarse thread it will be a UNC thread. Just measure the outside dia to get the size which will be fractional, from memory 5/16".

Cheers Mike.

 

[Dodgey]

Odds on 5/16th UNC and quite possibly, so worth checking, the neg will be 5/16th and the positive 3/8th UNC, nowt simple eh?

 

[wkel50]

Odds on 5/16th UNC and quite possibly, so worth checking, the neg will be 5/16th and the positive 3/8th UNC, nowt simple eh?

cheers Dodgey, best answer I had so far................:thumb:
will try 5/16 UNC first & let you know............

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[wkel50]

Odds on 5/16th UNC and quite possibly, so worth checking, the neg will be 5/16th and the positive 3/8th UNC, nowt simple eh?

Ace Dodgey.........both threaded terminals are 5/16" UNC.

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Thanks for info..........:thumb:

 

[Wildman]

I suspect they are actually 5/16 whitworth so if a bit too loose or too tight try a Whit nut. Same number of teeth per inch just a different thread angle.