I stripped the threads on one of the front seat to floor mount (captured) nuts. Does anyone know what the bolt soze & thread pitch for these are? I want to make sure I get the appropriate heli-coil kit.

 

M8 x 1.25 pitch.

 

Most people use a TimeCert repair for the seat captive nuts. The Helicoils are used for longer thread bores such as headbolts and plug threads. Try a search on TimeCert, I think you will find what you are looking for. Good luck on the repair.

 

I would never let anyone capture my nuts.

 

Thanks dudes...

 

I would rather stick my face in a toilet full of floating turds than screw around with Porsche seat bolts.

Been there done that. Spent 7hrs drilling them out with a titanium bit. Cussed the entire time. I put new ones on and left them so loose if I hit a marshmallow factory Im going through the windshield.

 

That bad? Is the nut material that hard?

 

I think it's because the loose captive nut spins while trying to drill them out requiring copious amounts of swearing to lodge something in there to hold them. Some people just cut the whole nut plate area out and weld in new ones with a new nut welded on the backside.

 

Well that will be me tomorrow! I've already got the helicoil and will be giving it a try....