 Seat Belt Bolt?, Seat Belt Bolt |
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| Boothy |
 Oct 23 2022, 07:56 PM
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#1
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Member  Group: Members Posts: 88 Joined: 17-January 19 From: Abington, MA Member No.: 22,805 Region Association: North East States  |
Sorry for such a pathetic question. I'm mounting the seat belt crossbar on the old mounts and I don't have the extra seat belt bolts. I went to my special bolt place and the kid futzed with the thread chart and tried to tell me a sloppy fit was right.
These look like an M11 1.25. Can anyone verify? |
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| Maltese Falcon |
Oct 23 2022, 08:51 PM
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#2
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Advanced Member Group: Members Posts: 4,645 Joined: 14-September 04 From: Mulholland SoCal Member No.: 2,755 Region Association: None  |
Seat belt bolt is a D.O.T. standard; I believe T.U.V. equivalent when the 914s were mfg.
7/16" x 20 tpi (thread), 1.5" long, grade 5 to 8. (IMG:style_emoticons/default/marty914.jpg) |
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| bdstone914 |
Oct 23 2022, 10:48 PM
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#3
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bdstone914 Group: Members Posts: 4,522 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(Boothy @ Oct 23 2022, 06:56 PM)  Sorry for such a pathetic question. I'm mounting the seat belt crossbar on the old mounts and I don't have the extra seat belt bolts. I went to my special bolt place and the kid futzed with the thread chart and tried to tell me a sloppy fit was right. These look like an M11 1.25. Can anyone verify? I have lots of replated seat belt bolts. There are four different ones. Three are shoulder bolts of different lenghts. The one that goes in the B pillar is the longest and uses a spacer to alllow the loop to pivot. Not sure if you want a harness bar to pivot. |
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| Boothy |
Oct 24 2022, 07:14 AM
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#4
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Member Group: Members Posts: 88 Joined: 17-January 19 From: Abington, MA Member No.: 22,805 Region Association: North East States |
Thank you!
Didn't realize there were different lengths. I'll try the 7/16 -20 first. Expected it to be mm. I'll IM you Brad if this doesn't work. Best! |
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| bdstone914 |
Oct 24 2022, 08:29 AM
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#5
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bdstone914 Group: Members Posts: 4,522 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
QUOTE(Boothy @ Oct 24 2022, 06:14 AM) Thank you! Didn't realize there were different lengths. I'll try the 7/16 -20 first. Expected it to be mm. I'll IM you Brad if this doesn't work. Best! They are all 7/16 thread. The difference is the shoulder height. Bruce |
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| Geezer914 |
Oct 24 2022, 01:45 PM
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#6
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Geezer914 Group: Members Posts: 1,415 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States 
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The bolt on the drivers side that screws into the tunnel is shorter than the outer bolt. Otherwise it will interfere with the clutch cable. Ask me how I know.
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| Dave_Darling |
Oct 24 2022, 01:53 PM
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#7
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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The fun part about them being different lengths: If you get a longer bolt in the driver's side right lap belt hole, it gets very difficult to shift into 4th and 5th gear. The end of the longer bolt interferes with the shift rod.
--DD |
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