Perth-WRX.com  

Go Back   Perth-WRX.com > Technical > Mechanicals
Register Diddy Kart ArticlesAll AlbumsBlogs FAQ Community Calendar Today's Posts Search


Welcome to Perth-WRX, click here to register!

Like Tree1Likes
  • 1 Post By type25

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 19-08-2016, 07:25 PM
Brett Allan's Avatar
Subaru Tech Division
Member
 
Join Date: Jan 2011
Location: NOR scum
Posts: 1,395
Thanks: 49
Thanked 41 Times in 39 Posts
Brett Allan knows their stuff
Default Seat Rail Bolt Replacement

Hey Lads,

Had a search but to no avail.

Pulling out my rear seats the other day I noticed one of the bolts is cooked and also bent....the ones that sit in the foot-well area



02 STI so GD.

I believe the bolts are the same as the ones that hold the seat rails in place...

So I wanted to order in 10 or so and replace the lot with Grade 5 + High Tensile in stainless or whatever is better than the shitty oem ones.

The question, does anyone know what size/pitch/thread and length they are?

From searching there is conflicting answers - M8 x 1.25, 3/8 x 1.5

Any ideas?

Thanks
__________________
2005 WRX STI
Reply With Quote
  #2  
Old 19-08-2016, 07:33 PM
nick73's Avatar
Subaru Tech Division
Member
 
Join Date: Feb 2011
Location: cubicle 2
Posts: 1,300
Thanks: 139
Thanked 91 Times in 87 Posts
nick73 is a gurunick73 is a guru
Default

Give West Coast Fasteners a call tomorrow, they usually have good quality stuff in stock at very reasonable prices. Take your bolts with you so they can match them up.
__________________
Bye bye betty blue. Hello F6.
Reply With Quote
  #3  
Old 19-08-2016, 08:16 PM
STI Master
Member
 
Join Date: Oct 2010
Location: Spearwood
Posts: 864
Thanks: 12
Thanked 71 Times in 68 Posts
Bram knows their stuff
Default

Almost all bolts used on subarus are metric or metric fine. One exception is seatbelt bolts. These are 7/16unf.

But i think the ones you have pictured there are just a regular m8x1.25 with a large washer.
__________________
Doing it for all the wagons out there
Reply With Quote
  #4  
Old 19-08-2016, 08:27 PM
type25's Avatar
Subaru Tech Division
Member
 
Join Date: Jun 2008
Location: in exile
Posts: 1,371
Thanks: 12
Thanked 12 Times in 12 Posts
type25 at standard level
Default

8 X 1.25 for rear seat

10 X 1.25 for front seats
Brett Allan likes this.
__________________
[SIGPIC][/SIGPIC]
Reply With Quote
The Following User Says Thank You to type25 For This Useful Post:
Jezza (20-08-2016)
  #5  
Old 21-08-2016, 03:50 AM
Brett Allan's Avatar
Subaru Tech Division
Member
 
Join Date: Jan 2011
Location: NOR scum
Posts: 1,395
Thanks: 49
Thanked 41 Times in 39 Posts
Brett Allan knows their stuff
Default

Thanks for the replies

Will source some when I am back in town
__________________
2005 WRX STI
Reply With Quote
  #6  
Old 21-08-2016, 08:22 AM
STI Master
Member
 
Join Date: Oct 2010
Location: Spearwood
Posts: 864
Thanks: 12
Thanked 71 Times in 68 Posts
Bram knows their stuff
Default

Quote:
Originally Posted by type25 View Post
8 X 1.25 for rear seat

10 X 1.25 for front seats
Except for the front seats inner rear bolt. Which is a 7/16 UNF
__________________
Doing it for all the wagons out there
Reply With Quote
  #7  
Old 21-08-2016, 10:18 AM
DCCD Donut Driver
Member
 
Join Date: Sep 2014
Location: Perth
Posts: 107
Thanks: 9
Thanked 2 Times in 2 Posts
Mcclacker at standard level
Default

i should have some spare when I stripped the car for rally prep (didn't chuck any fastenings out) Currently overseas till next Sunday and give me a yell if you want me to check. I'm SOR
__________________
1980 MK2 Ford Escort RS2000
1979 MK2 Ford Escort RS1800 GRP4 spec historic rally car.
1998 GC8 WRX Tarmac rally car
Reply With Quote
  #8  
Old 21-08-2016, 11:57 AM
type25's Avatar
Subaru Tech Division
Member
 
Join Date: Jun 2008
Location: in exile
Posts: 1,371
Thanks: 12
Thanked 12 Times in 12 Posts
type25 at standard level
Default

It is worth putting a small amount of anti-seize on the threads too.

And yes Bram is correct. The inner rear bolt on the front seats is a typical manufacturer accepted standard seat belt bolt thread of 7/16 UNC.
__________________
[SIGPIC][/SIGPIC]
Reply With Quote
  #9  
Old 21-08-2016, 04:19 PM
STI Master
Member
 
Join Date: Oct 2010
Location: Spearwood
Posts: 864
Thanks: 12
Thanked 71 Times in 68 Posts
Bram knows their stuff
Default

Quote:
Originally Posted by type25 View Post
It is worth putting a small amount of anti-seize on the threads too.

And yes Bram is correct. The inner rear bolt on the front seats is a typical manufacturer accepted standard seat belt bolt thread of 7/16 UNC.
7/16 UNF NOT 7/16 UNC.

UNF is fine thread. UNC is coarse thread.

Although they are both the same diameter, the threads are not compatible.
__________________
Doing it for all the wagons out there
Reply With Quote
Reply

Tags
bolt, rail, replacement, seat


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Broken / Sheared bolt in passenger seat rail dnbosiris Cosmetic 2 26-11-2014 09:03 PM
passenger seat rail gc8/gda Spektre Wanted 0 21-01-2014 03:18 PM
GC8 Cluster / HKS Oil Cooler Kit / Recaro Seat Rail & Moreee blommer For Sale 9 24-07-2011 04:11 PM
Gc8 99 -00 recaro sr model seat rail siudar-14 Wanted 0 04-03-2010 11:01 PM
Bolt in Roll Cage and Racing Seat Fozzy For Sale 1 08-07-2009 07:26 PM



Welcome to Perth-WRX, click here to register!

All times are GMT +8. The time now is 01:25 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO