I'm missing 4 of these - the ones that mount the top hats to the body. Anyone know for certain what size they are? I need to go look for some after work and don't have time to run home. I think it's an M6x1.25 but I'm not positive.

I must have let 4 of mine go with my old suspension when I sold it....

Thanks!

 

Dang it...nobody knows for certain?

 

M8x1.25 on the NB if that helps

 

M8 sounds right. I know the NA and NB threads are the same. Make sure you use a thread locker with non OEM nuts. I had two missing once and used nuts from Lowes, they were loose in a week even though I torqued them to factory specs and I have never had this problem on any of my other Miatae.

 

This is correct.

I also lost hardware store nuts that fall off, I ended up purchasing some flange nuts from Fastenal. They have been there for 2 seasons and are torqued nicely.

 

Yep. Confirmed 8x1.25. Got some nuts and lock washers at an auto parts store. They say "prevailing torque" but they don't behave like lock nuts.

I'm going to a local fastener specialty shop tomorrow to see about flanged lock nuts before I commit to these and red thread locker.

 

As I said, the same size as the measuring stick in your pants.

 

Those nuts are at least an M60x2