Mazdaspeed Front seat bolt size and thread pitch

I have searched Google, maybe I’m not trying the right combination. I am needing to get a few seat mount eye bolts for my 4 point harnesses , can’t find the specs to these bolts to find a unit with clip-on eyes
Any help is appreciated, thanks in advance

 

Your Google skills be lacking. Pretty sure it's an m8 bolt, I think this is the exact Mazda psrt# assuming you want the bolt that holds the track to the floor? Checkout the link for pn and diagram then Mazda should be able to give you bolt dimensions off that. I don't have more info than that for you HTTps://www.jimellismazdaparts.com/products/Mazda/2013/Mazda-3/BOLT/1817251/9YA021079.html

 

Yeah, probably a little tired and frustrated. Thanks for the assist

 

Hope you find the info, sorry I couldn't be of more help than the Pn#

 

I believe the thread pitch for the seat bolts is M10-1.25. The length is up to you. After the threads the hole goes down more than a few inches. So you can go longer than an inch.

Check out the thread on here about seat bracket mounted fire extinguishers. Folks had to go with a different sized head to make the bracket fit and a few posted up thread pitches. Should be the same on both gens.

I did the same thing years ago in my old car. One thing to be mindful of the width you’ll have to screw an eye bolt into. I had to really force mine to fit. They threaded fine but as I got closer to bottoming out the eye boots were rubbing on the seat bracket and I had to use a screw driver to drive them down.

I have my old eye bolts and they must be a different thread pitch because I tried them today and no bueno.

 

So it’s looks like the seat bracket should clear eye bolts easily. I confirmed the stock pitch at M10-1.25. The eye bolts I have are M10-1.50. Attached a few pics for reference.

Stock bolt


Eye bolt with plenty of space.

 

You ROCK!

Thanks