Source for "Premium" bolts other than ARP?

[Crackerman]

I hate even thinking this... But if you cant find those anywhere, fastenal can make you some. They won't be cheap, i was quoted 60 bucks each on an oddball m13x1.25, depending on what its used for, tap out to new bolt size, or helicoil, and use a standard available not m

[maj]

https://www.belmetric.com/10x10-extra-fine-c-6_339_359_907/

I would get the 45 and or 50 and cut to length so you have a shoulder to support the flywheel

[SteveM]

Great discussion, guys!  This kind of topic highlights why the Landracing.com forum is so valuable.

Through good fortune, someone contacted me directly with a set of connecting rod bolts from a premium manufacturer with specs that will work perfectly for my application.

The internet is great!

Steve

[bearingburner]

Bolt depot list 10MX1.0 cap screws in 10.9 grade in various length for about $ 1.00 each

[SteveM]

I ordered a set of 12.9 socket head cap screws from McMaster for mock-up purposes.

Depending on the rest of the varaibles in this setup, I may continue with the McMaster bolts, or use a set of connecting rod bolts from a different application.

steve.