gm 3960314 bolt idenitification

Old May 15th, 2016, 06:21 PM
  #1  
Registered User
Thread Starter
 
bumble-70442's Avatar
 
Join Date: Jul 2015
Location: Connecticut
Posts: 12
gm 3960314 bolt idenitification

I am replacing these bolts on a 1970 442 and am curious if anyone knows exactly what the head looks like on a 3960314 bolt. Foe example plain vs three lines vs lightning bolt also what was the actual length of these. I would appreciate any info that is available
bumble-70442 is offline  
Old May 15th, 2016, 08:29 PM
  #2  
Randy C.
 
rcorrigan5's Avatar
 
Join Date: Feb 2009
Location: Albany, OR
Posts: 2,599
From the AMK catalog: 3960314 is a 5/16-18 body bolt, 13/16 long with a 1/2" bolt head and its maximum width on the bolt head is .65". The body bolts in the catalog (and on my '68 and '69 of this description) mostly have a circle with a symbol that kind of looks like a lower case "f" in the middle. These bolts are finished in phosphate and oil (gray-black).


You can order these bolts through AMK. Their part number is B-12500 (12 bolts in a bag for $6) or B-12501 (50 bolts in a bag for $20).


Check with AMK before you order, though (www.amkproducts.com, 540-662-7820, 800 Airport Road, Winchester, VA 22602). They have a minimum order of around $40, plus there is shipping of around another $10 or so.


Their catalog is pretty good for identifying all kinds of fasteners. They have a cross-reference to GM part numbers in the back of their catalog (along with GM & Chrysler as well). They don't list all the GM part numbers in the assembly manuals but, if you have a sample bolt or screw, you can usually match it up to the life-size pictures of fasteners they have in their catalog.


Randy C.
rcorrigan5 is offline  
Old May 18th, 2016, 06:42 PM
  #3  
Registered User
Thread Starter
 
bumble-70442's Avatar
 
Join Date: Jul 2015
Location: Connecticut
Posts: 12
Thanks for the reply. I have also found them n ebay musing the GM Number 3960314
It seems that there a variety of patterns on the head of these bolts
bumble-70442 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tru-blue 442
Drivetrain/Differentials
4
May 7th, 2012 08:48 AM
72442conv
Parts Wanted
2
March 19th, 2012 07:14 AM
olds4life
Transmission
8
October 5th, 2010 05:18 AM
dman0712
Drivetrain/Differentials
8
March 16th, 2010 07:40 PM
tmcfall
Cutlass
12
April 5th, 2008 01:52 PM


Thread Tools
Search this Thread
Quick Reply: gm 3960314 bolt idenitification


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.