Seat Bolt size

[Tnfastbk]

Does anyone know off hand what the front seat bolts size? 1971 model but think all are the same for 71-73.

 

[Tnfastbk]

I Guess I should have specified I need thread size/pitch not bolt head size.

 

[Moderator73]

This is what I have on my 1973. It’s a 7/16” thread with a 20NF pitch. The bolt of course has the 1/2” diameter shoulder that is also 1/2” in length.

You probably already know this but NPD and AMK sell these but are a bit pricey $16/seat

https://www.npdlink.com/product/mounting-kit-seat-belt-front-seats/105164

Hope this helps.
Bob

 

[72MustangSprint]

I Guess I should have specified I need thread size/pitch not bolt head size.

Just message Motorcity Mike , he has jars of hardware from parting out cars .

 

[Stanglover]

This is what I have on my 1973. It’s a 7/16” thread with a 20NF pitch. The bolt of course has the 1/2” diameter shoulder that is also 1/2” in length.

You probably already know this but NPD and AMK sell these but are a bit pricey $16/seat

https://www.npdlink.com/product/mounting-kit-seat-belt-front-seats/105164

Hope this helps.
Bob

I read this as needing the bolts size for the seats, not the belts.
Without checking my car, I think they are 3/8-16 shoulder bolts and should be at least grade 5 bolts. Length is 1 1/2" if I remember.

 

[Tnfastbk]

Thank you yes they are 3/8 -16. I am making some cut off bolts ground to a point for new carpet install. Thought that might make finding hole location a little easier through the carpet.

 

[73pony]

I just installed the bolts back into the holes before putting the new carpet in. Then they are easy to locate and cut the opening.

 

[Moderator73]

Geez, I don’t know what I was thinking. I just answered the wrong question. I just checked my “seat bolts” since they are still out of the car and you are right. Mine are also 3/8-16.

 

[Tnfastbk]

Geez, I don’t know what I was thinking. I just answered the wrong question. I just checked my “seat bolts” since they are still out of the car and you are right. Mine are also 3/8-16.

I appreciate the effort anyways.