o2 housing thread size?

[Amazin' Wasian]

I'm missing a nut that holds my down pipe to my o2 housing, can some one tell me what kind of nut to buy? Thanks
Nick

 

[grpracing]

10mm 1.50 pitch. I have had a few come up at a 1.25 pitch so buy both to be safe.

 

[Amazin' Wasian]

10mm 1.50 pitch. I have had a few come up at a 1.25 pitch so buy both to be safe.

Hey thanks a lot I appreciate the quick reply.....
*edit* 10mm didn't fit I found that 12mm 1.50 pitch nuts fit.