<VV> Bolt Grades

[lonzovair at aol.com]

Isn't it Clark H. who has access to some of the "blue prints" (detailed plan drawings?) for the parts? If so, is the 64 leaf spring bolt listed? I haven't looked in my P&A 30 C for info... but as for the original bolts, I'm almost positive they have a round head like a carriage bolt, but without the square "wedge" under the head... The originals I took off my 64 were like that, and the NOS ones I got from the east coast vendor were just like them...
Just wondering...
Lonzo


-----Original Message-----
From: Chris & Bill Strickland <lechevrier at earthlink.net>
To: VirtualVairs <virtualvairs at corvair.org>
Sent: Fri, Nov 13, 2009 1:01 pm
Subject: <VV> Bolt Grades



Dave Thompson wrote:
>It seems to me that a bolt that takes so much stress and is subject to breaking 
hould be a grade 8. 

I have not done any comparative testing of bolts, but what I understand 
s that while Grade 8 (and higher) bolts do have a higher tensile 
trength, they are overall more brittle than Grade 5 bolts, and are not 
erhaps the de facto 'best choice' for some applications, especially 
hose taking a lot of high shock loads and abrasive wear. Perhaps the 64 
orvair spring bolts fit into this category -- I don't know -- I do know 
 put in 8's my cars (with Grade 9 nuts). Maybe the factory bolts were 
itrided?   <wag>
I am sure that if further information is required, it could be found on 
he internet, and if someone looks and finds such, I would appreciate 
heir sharing of the information.
Thank you,
Bill Strickland
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