I plan on replacing the "hat" bolts on my AP Racing Kit#3700.

My QUESTION is what strength rating of bolt is required?

I assume these get very hot. The bolts I purchased are aircraft quality and are rated up to 450° F, heat treated, Cad plated, tensile strength 125,000, Type II, class 3...

I can not find any marking on the old ones but they look almost identical to the new ones.


Old Bolt

New and Old Hardware

Disk & Hat

THX