Can someone confirm thread size please need to sort some lock nuts

Thanks.

On reflection it was something more random.. will check tonight.

[Edited on 19-8-14 by loggyboy]

They are usually always UNF thread but with so many different one on the market now there are bound to be variations.

I think mine are 7/16unf 20tpi. Will check later if no one can confirm.

7/16 unf

Went to check the size but realised I'm too old and fat to get to the pedals