Sourcing a Seat Belt Buckle Bolt for mounting the buckle to the seat.

[Jinman3]

Hello all,

I'm struggling to find a bolt for mounting the seatbelt buckle to the seat. I went to Porsche Seaside and they said this bolt (P8094) has been discontinued. I tried searching online but am having no luck so I'm curious if anyone knows a secret site that may have some in stock OR if anyone knows a similar bolt that will work. I would love to use the OEM seatbelt instead of my 5 point harness to drive around the car. Cheers

[Arne2]

I have a number of odd seat belt bolts floating around. Do you have a picture or diagram of the one you need? If I have one, it won't be a 944 bolt, but might be suitable.

[Jinman3]

I have a number of odd seat belt bolts floating around. Do you have a picture or diagram of the one you need? If I have one, it won't be a 944 bolt, but might be suitable.

Attached I shown some images of possible bolts, seeing that this website shows that the rear bolt shares that part number, I'm curious if I can just use the rear bolt. I'll check it out today.

[Tom]

I can tell you the threads are almost surely 7/16 -20, and not metric due to a quirk in the federal rules. They are often mistaken for impossible to find M11 bolts....

[Jinman3]

I can tell you the threads are almost surely 7/16 -20, and not metric due to a quirk in the federal rules. They are often mistaken for impossible to find M11 bolts....

Okay I made it work! I took one of the bolts from the rear seat buckles, removed the spacer and added the plastic washer and regular washer. However, it runs against the carpet on the tunnel but I’ve managed to thread it in and torque. Used the silver bolt as it was shorter with the washers from the black bolt

I also removed both driver/pass 5 point harnesses and cut out a log of tape and gunk so the interior looks much better and less ricer!

[Arne2]

I can tell you the threads are almost surely 7/16 -20, and not metric due to a quirk in the federal rules. They are often mistaken for impossible to find M11 bolts....

Interesting side note. I always thought that the Feds choice to force the use of old Imperial/SAE spec fittings for seat belt anchors was a bit arrogant and presumptuous since even back in the '60s when those standards were set up most of the world was totally metric. But—just perhaps—there was a method to the choice of 7/16" x 20.

7/16" is 0.4375"
11 mm is 0.43307..."

20 turns per inch is 1.27mm per turn

The differences are minor. In practice, 7/16" x 20 is essentially interchangeable with M11 x 1.25.

[Tom]

I can tell you the threads are almost surely 7/16 -20, and not metric due to a quirk in the federal rules. They are often mistaken for impossible to find M11 bolts....

Interesting side note. I always thought that the Feds choice to force the use of old Imperial/SAE spec fittings for seat belt anchors was a bit arrogant and presumptuous since even back in the '60s when those standards were set up most of the world was totally metric. But—just perhaps—there was a method to the choice of 7/16" x 20.

7/16" is 0.4375"
11 mm is 0.433..."

20 turns per inch is 1.27mm per turn

The differences are minor. In practice, 7/16" x 20 is essentially interchangeable with M11 x 1.25.

I looked up the regulation once, and it actually says 7/16-20 "or metric equivalent." Without evidence, I think all manufactures just go with 7/16-20 so they never have to argue to a jury that .433 is equivalent to .4375 in front of a grieving widow and crying children. If that bolt were only .0045" bigger...

Some Japanese cars have 7/16-20 bolts with metric hex heads -- try finding that at Ace!