Agreed almost all round.
Minus the thread bit. Maybe I've just never had them tight enough, which is possible, but you shouldn't be deforming the threads on that nut. Because you cannot control that deformation without a specific torque sequence.
Now maybe suspension isn't finicky enough to need that specific sequence like, say, a head or a valvecover.
Grade 2 bolts are low/medium carbon steel. That the closest to "mild" you are going to get.
A 9/16x12 (coarse thread) grade 2 bolts has a minimum tensile strength of 13,000 lbs.
A 9/16x18 (fine) grade 2 bolts has a tensile strength of 15,000 lb.
If you've got 4 of those things per axle end, and your threaded area is equal to the diameter of the bolt, AND your plate is nearly the same grade as those grade 2 bolts, you're talking about a force moment parallel to the bolts of 60,000 lb to start breaking them.
I can't think of a time where a single axle corner faces 60,000lb of force while out wheeling. We're talking a distributed force of 120,000lb across the front axle.
Other shit is gonna break long. . . Long before that.
The shear strength is based more on the plate. You aren't shearing a grade 8 9/16 bolt into a mild steel plate with even 3/4" of "meat" around the outside of the bolts. You'd have to tear that steel out.
Again, other shit is breaking way... Way before that.
Not to mention that the bolts, being bolted downward and tight to the plate, aren't directly encountering undistributed moment load anyway. They're holding the plates in place as the area transfer force.
If be far more worried about those bolts pulling the threads out of the plate under tensile than shearing anything, for exactly the reason you describe.
This is what happens when you don't properly spec thread surface area and strength. https://en.m.wikipedia.org/wiki/Hyatt_Regency_walkway_collapse
That's what I was saying though. A grade 2 bolt is low carbon steel, which is most comparable to the plates we're talking about.
If a 9/16 bolt has a tensile strength of 15,000lb, the piece it's threaded into would be comparable to that strength as well if it is of similar metallurgy.
You really shouldn't be pulling threads out of those plates.
Edit: Blender beat me.
When I'm done work I'll dig in and be the boring fucker that goes through it, because I just want to see what's what.
Good. That’s literally my job and i dont work for free.
I don't want you to touch me, even through your mittensWhat if I offered a crisp high 5?
Side note:
I am a natural righty. I can MIG and stick with both hands but prefer gun/stinger in right.
But everytime I set up to weld with TIG I grab the torch with my left hand. Also noticed I feed filler differently between the left and right hands. Anyone else this fucked up?