The problem:

A. 2 out of 4 bolts came loose and then pulled out stripping the
internal bolt hole threads in grade 8 steel.
B. Because of the bolt pattern there isn't enough room to drill out
and tap the damaged bolt holes one size larger - the larger sized bolt
heads would hit each other while being tightened.

Possible solutions I see are:

A. Use a grade 8 metal putty kind of material to build up the damaged
internal threads about .015 to .020 inch and re-tap internal 1 1/8
inch 12 TPI bolt hole.
B. Use a helical thread kit to drill out bolt hole, tap, insert
helical thread, and good to go.  The problems with this solution are:
1. the larger size bolt heads will hit each other.
2. drilling and tapping 1 1/4 inch in grade 8 steel in this very confined
space underneath my bulldozer is almost impossible.

Question:

Is there a putty/epoxy (???) material I can spread around the damaged
internal bolt hole threads equivalent to grade 8 steel that I can then
re-tap new threads?

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Clarification of Question by mortonhawaii-ga on 15 Jul 2004 21:36 PDT

Aloha,

Thank you for your comments.

I'll contact the company's you've mentioned asking them if their
products meet "grade 8" specs.

Mahalo,
Mort

www.devcon.com makes epoxies for this purpose see here
http://devcon.com/devconcatsolution.cfm?catid=38

This may be the exact product for you
http://devcon.com/devconfamilyproduct.cfm?familyid=124.0&catid=16

J-B weld