Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> seat belt nut?
obscurity
post Jul 8 2007, 01:41 PM
Post #1


Member
**

Group: Members
Posts: 411
Joined: 24-February 06
From: Atlanta ,GA
Member No.: 5,628
Region Association: South East States
I am still working on my hell hole repair. In fact I am still cutting metal out as I discover how far forward the rust has crept. I have had to remove the passenger seatbelt attachment nut and was curious if anyone makes a replacement or do I just need to fabricate one. If it is the latter does anyone know what size it is? Mine was hopelessly attached to the bolt. Unfortunately I am not at home to check the driver's side bolt.

I tried to find what size replacement belt bolds are but nobody seems to publish that. I assume that's because it is a standard?

Thanks for the info
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
 Reply to this topicStart new topic
Replies(1 - 12)
freezing14
post Jul 8 2007, 02:58 PM
Post #2


freezing14
**

Group: Members
Posts: 435
Joined: 21-June 04
From: brockville , Ontario, Canada
Member No.: 2,233
the only thing iknow is that it is not metric,, or the SAE is identical, I had to fabricate mine ,,
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
xitspd
post Jul 8 2007, 03:09 PM
Post #3


Technology and Tradition 3.6 and 914-6
***

Group: Members
Posts: 1,305
Joined: 17-November 04
From: Foothills of Mt. San Jacinto, CA
Member No.: 3,136
I will send you a Bolt, Washer and Nut from a 5 Point harness if it will help you. No-Charge

Dan


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Jul 8 2007, 03:13 PM
Post #4


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
11 x 1.25 is the correct thread pitch for that nut.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
obscurity
post Jul 8 2007, 04:02 PM
Post #5


Member
**

Group: Members
Posts: 411
Joined: 24-February 06
From: Atlanta ,GA
Member No.: 5,628
Region Association: South East States
i guess it is possible that they are just very similar. I found one reference to seatbelt bolts on http://wescoperformance.stores.yahoo.net who appears to deal with racing gear. They have a hardware mounting kit for sale that includes 7/16" fine thread(20tpi) bolts.

11 x 1.25 converts to 6.929/16 - 20.32 - Almost the same...

Interestingly my initial search of Mcmaster didn't turn up any 11mm nuts
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dr914@autoatlanta.com
post Jul 8 2007, 04:15 PM
Post #6


914 Guru
*****

Group: Members
Posts: 7,866
Joined: 3-January 07
From: atlanta georgia
Member No.: 7,418
Region Association: None
"yeah" we make it. and weld it into our long replacement part
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
obscurity
post Jul 8 2007, 05:21 PM
Post #7


Member
**

Group: Members
Posts: 411
Joined: 24-February 06
From: Atlanta ,GA
Member No.: 5,628
Region Association: South East States
QUOTE(dr914@autoatlanta.com @ Jul 8 2007, 06:15 PM) *

"yeah" we make it. and weld it into our long replacement part



Do you sell it separately!? I don't think I need the whole part just the nut. I suspect the whole part is pretty pricey
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Brian_Boss
post Jul 8 2007, 06:42 PM
Post #8


Member
**

Group: Members
Posts: 324
Joined: 3-June 03
From: Dallas, TX
Member No.: 781
I'm pretty sure that some stupid DOT requires seat belt anchor bolts to be 7/16NSF aka 7/16 - 20, even if every other fastener on the car is metric.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dr914@autoatlanta.com
post Jul 9 2007, 08:49 AM
Post #9


914 Guru
*****

Group: Members
Posts: 7,866
Joined: 3-January 07
From: atlanta georgia
Member No.: 7,418
Region Association: None
QUOTE(Brian_Boss @ Jul 8 2007, 05:42 PM) *

I'm pretty sure that some stupid DOT requires seat belt anchor bolts to be 7/16NSF aka 7/16 - 20, even if every other fastener on the car is metric.


very good point! we had to have the special weld in nut made!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
obscurity
post Jul 9 2007, 11:19 AM
Post #10


Member
**

Group: Members
Posts: 411
Joined: 24-February 06
From: Atlanta ,GA
Member No.: 5,628
Region Association: South East States
QUOTE(dr914@autoatlanta.com @ Jul 9 2007, 10:49 AM) *

QUOTE(Brian_Boss @ Jul 8 2007, 05:42 PM) *

I'm pretty sure that some stupid DOT requires seat belt anchor bolts to be 7/16NSF aka 7/16 - 20, even if every other fastener on the car is metric.


very good point! we had to have the special weld in nut made!



But do you sell it separately? (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
John
post Jul 9 2007, 11:55 AM
Post #11


member? what's a member?
****

Group: Members
Posts: 3,393
Joined: 30-January 04
From: Evansville, IN (SIRPCA)
Member No.: 1,615
Region Association: None
The M11x1.25 tap threads in like it was made for it, while a 7/16-20 tap will attempt to cut new threads.

I know 7/16-20 seat belt bolts will fit as that is what most competition harnesses are supplied with.

I firmly believe that they were originally metric threads in our cars, but this debate has been held before. I even posted a picture of my M11x1.25 tap.....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Chris Pincetich
post Jul 9 2007, 01:56 PM
Post #12


B-)
****

Group: Members
Posts: 2,082
Joined: 3-October 05
From: Point Reyes Station, CA
Member No.: 4,907
Region Association: Northern California
QUOTE(John @ Jul 9 2007, 10:55 AM) *

I know 7/16-20 seat belt bolts will fit as that is what most competition harnesses are supplied with.


Safety harnesses are on my To Buy list right now, and I was wondering if everyone racing was just screwing the 7/16 into the metric hole. Sounds like it is no big deal and there is enough thread engagement to pass tech inspection and be safe in an accident....if it worked for the last 30 years I am OK with it (IMG:style_emoticons/default/beerchug.gif)

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jd74914
post Jul 10 2007, 03:21 PM
Post #13


Its alive
****

Group: Members
Posts: 4,780
Joined: 16-February 04
From: CT
Member No.: 1,659
Region Association: North East States
QUOTE(John @ Jul 9 2007, 01:55 PM) *

The M11x1.25 tap threads in like it was made for it, while a 7/16-20 tap will attempt to cut new threads.

I know 7/16-20 seat belt bolts will fit as that is what most competition harnesses are supplied with.

I firmly believe that they were originally metric threads in our cars, but this debate has been held before. I even posted a picture of my M11x1.25 tap.....


This is a little late, but yesterday I bought some grade 8.8 7/16 nuts to make new seat belt plates with, and the old bolts go in perfectly (the ones that were on the car). They feel exactly the same as 7/16 bolts threaded into the 7/16 nuts (IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Switch to: Standard · Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 19th May 2024 - 12:17 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...