[T3] Attaching rear seat belts

[Bobsnotch at aol.com]

In a message dated 12/19/2013 6:58:36 P.M. Eastern Standard Time,  
dave at hallvw.clara.co.uk writes:
 
The mountings are
significantly larger bolts than the pan uses -  7/16"-20 UNF bolts, (just
checked), rather than M8 like the  body-bolts.  ISTR (but not always
correctly!) some of the fitting kits  I've found have bolt heads around 18mm
across on those ('proper 7/16"  bolts?), but others have 17mm metric heads -
confusing until I  realised!  However the thread is an international
standard.  I'm  not sure how they could change it now without making it 
clear
that the  thread is different.
 
 
Here in the states, we use an 11/16ths instead of a 17mm wrench/socket  for 
early seat belt bolts. It's kind of a standard from those days. Now,  on 
newer stuff they're 14mm coarse thread, and have a dab of  blue loctite on the 
threads. :O 
 
Yes, most of the aftermarket seal belt "kits" sold, do have 7/16-20  thread 
on them. They also include a couple of thick (1/8th inch) washers for  
adding seat belts into an early car (like a 65).
 
Like Dave and Jim mentioned, the center rear seat mount holes are 7/16-20  
thread. : )  

Bob 65  Notch S w/Sunroof and IRS aka Krusty
64 T-34 Ghia aka Wolfie
71  Square-vert under  construction


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