Grade 8 Shear Bolt?

   / Grade 8 Shear Bolt? #1  

madtowneast

Member
Joined
Jan 30, 2022
Messages
46
Tractor
Massey Ferguson 4707
Hi All,

I broke a bolt on my Case IH BS174R, specifically part # BER657199. The description is Bolt - Grade 8.8 Shear, & Nut. Is there such a thing as Grade 8 shear bolts?

Does anybody know what size the bolt is? The parts diagram says 6 are needed and I can’t figure where the other 5 are.

Thanks!
 
   / Grade 8 Shear Bolt? #4  
Leaving this here. May help future readers.

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   / Grade 8 Shear Bolt?
  • Thread Starter
#5  
Thanks for the replies!

Can anybody tell me the size of the bolt that I need?
 
   / Grade 8 Shear Bolt? #7  
Many times they are 1/4 inch, BUT it depends on application, what is diameter of hole you are going to put bolt in....
Likely not 1/4 inch if it's grade 8.8! :p
 
   / Grade 8 Shear Bolt? #8  
Thanks for the replies!

Can anybody tell me the size of the bolt that I need?
It might be easiest just to order the parts kit, unless you have a Case dealer near you. You probably will have it next week.
Better yet, order two; that way you can use one, and match the other up at your leisure.
 
   / Grade 8 Shear Bolt? #10  
As point of reference:
6 mm is a little smaller than 1/4 inch
8 mm very close to 5/16 inch
10 mm is a little larger than 3/8 inch
12 mm is a little smaller than 1/2 inch
 

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