Frame bolt specs

[Narkhelek]

I've been bolting various things to my frame of late (sliders, rear bumper, etc) and it got me wondering what the existing M8x1.25 and M12x1.5 frame nuts are rated. For example would they be equivalent to class 8.8 or 10.9? Knowing this would help me choose the appropriate class bolt and use the correct torque when bolting things up to my frame. Anyone know what the specs are?

 

[GoblinNut]

I feel like this link will help u understand the rating of bolts and general use around the vehicle

Common Automotive Fasteners Guide ~

 

[delloro]

I don't recall seeing many 8.8 JIS bolts, if any. Why not go with the 10.9?

 

[spartacus]

Patience is a virtue but 6 years later thats kind of pushing it.

 

[nglayton]

Patience is a virtue but 6 years later thats kind of pushing it.

Saw another thread last week or so that got an answer after 7+ years. :ybrick:

Lots of people sitting at home these days, Not mention the OP sold his 4runner already...........