Catback exhuast nut size/specs
 

Hi,

Does anyone know what size nut I need for my exhaust system? I have a stock midpipe and have lost the nuts so my exhaust is just dumping out of the midpipe.

https://cimg2.ibsrv.net/gimg/www.rx7...34ce4f9b20.jpg


Moe Greene

M12x1.5. I always like to replace those and make sure you chase the stud threads with a die. They are notorious for getting damaged when the exhaust is removed.
https://www.mcmaster.com/#93850A340

Just to add some pennies:
If you're going to be working on anything mechanical, be it a car, motorcycle, lawn-mowers, machines... etc. I'd invest in this simple tool you can hang up anywhere.
http://www.dvorakmachine.com/photos/thread_gauge.jpg
http://www.dvorakmachine.com/photos/thread_gauge.jpg

HTH

For those interested.

Awesome! Definitely going to be ordering this. This would have come in handy so many times for me already.

Probably pick up a thread pitch gauge much cheaper with a far greater range of metric, imperial, np and bsp threads catered for than that thing. I'd assume anyone who works on a car should have basic vernier calipers - or should be shot - a ruler is even sufficient knowing most of the metric stuff common to this car comes in 2mm steps.

The exhaust bolts are probably rusted bits of crap, but a thread file can get you out of trouble too for something that basic.