M14-1.25 impossible bolt to find


Tsestak45

5+ Year Member

Joined
Sep 12, 2020
Messages
37
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601
City
Philadelphia
Vehicle Year
1998
Transmission
Manual
So somehow during my engine swap my harmonic balancer both disappeared. Apparently there's like one place on this planet that you can buy a M14-1.25 bolt to use in its place. Also that one place that you can buy it doesn't exist. Does anyone for the love of God know where I can get one of these bolts and quickly?
 
Junkyard?

I’d say maybe McMaster-Carr but they only have those in grade 8.8 and I’m not sure what hardness you need
 
And you're positive that's the size?
 
Junkyard?

I’d say maybe McMaster-Carr but they only have those in grade 8.8 and I’m not sure what hardness you need
Mcmaster doesn't list that thread pitch. Normal fine pitch is 1.5.
 
What engine is this for? Some (4.0 in particular) use a torque to yield bolt that is probably purpose made for that specific application and there's a good chance that you'll only find it at Ford.
 
Mcmaster doesn't list that thread pitch. Normal fine pitch is 1.5.
You are correct, I missed that. Coffee apparently hasn’t kicked in yet, better send another cup down
 
What engine is this for? Some (4.0 in particular) use a torque to yield bolt that is probably purpose made for that specific application and there's a good chance that you'll only find it at Ford.
I didn't think about that. Instead of searching for M14x1,25 bolt. You should search for harmonic balancer bolt for your engine
 
autozone has it or will have it
 
I was wandering in Princess Auto today....
PXL_20260317_005844359.jpg
PXL_20260317_005839287.jpg


I know, not what you're looking for, but a sign that bolts are made. Looks like sparkplug thread size.
 
Could make your own. Find the proper type of steel. Mill the head, cut the threads, heat treat to proper hardness, anneal to prevent brittleness, oxide coating for corrosion protection.

Should only take a couple days for a beginner DIYer who has never done hardening before. Of course, you'll spend more money buying the steel billet, thread die, chemicals, miscellaneous tools.
 
Could make your own. Find the proper type of steel. Mill the head, cut the threads, heat treat to proper hardness, anneal to prevent brittleness, oxide coating for corrosion protection.

Should only take a couple days for a beginner DIYer who has never done hardening before. Of course, you'll spend more money buying the steel billet, thread die, chemicals, miscellaneous tools.

It would be easier to find a length of threaded rod and weld a nut on the end. :icon_twisted:

That is how I make bolts for weird things anyway...
 

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