Not "weaker" but "more brittle" based on the crystalline structure of the metal. Also it depends on the grade of stainless used.

My "common" hardware store carries these - grade 8 stainless bolts... Unfortunately - just not in the 7/16" size

McMaster-Carr

 

I really suggest you go to the site I recommended and click on the link About Your Safety before you hurt yourself or worse yet someone else.
Good Luck on the Grade 8 SS from the hardware store!!

 

Just for fun I read your little "safty annoucement". Where in this did we ever talk about using stainless for suspension bolts? That is what they discuss in that safetly announcement is it not? Also note they say they WILL use grade 8 stainless for suspension bolts. Not my cup O tea. For bolts that will see some abuse (what I do with trucks is beyond 90% of the people on this forum) it's grade 8 or F9-11 (you even know what those are???), but for body bolts - the grade 8 stainless will be more than fine.
Please note also that the "high grade" stainless bolts on that website are grade-8 stainless. Sure they are made by ARP, and are therefore quality bolts, but I wouldn't doubt the grade 8 stainless bolts I can find for the BODY MOUNT APPLICATION DISCUSSED IN THIS THREAD.

Because you know there is a HUUUGE amount of shear load (or any load - pick one compression, tension (how?), or torsional (again - how?) applied to these bolts) whicle driving down the road. So much so that my body that is is going to fly off the truck and kill someone!

*Disclaimer for those who are a little slow - the last few lines are complete sarcasm if the roll eyes smiley and wording didn't make it obvious.

Not my truck - but the normal life of a desert truck
http://warnerpro.com/3-20-04-ROR.jpg

YouTube - maxriato

 

"the normal life of a desert truck"? LOL :)

I believe the normal life of a desert truck is closer to my pickup and
it's never been driven like that or had numbers painted on it either. ;)
So something's not quite right about that statement. ;)

Yes, it sure as heck does! :)
But, who told you that...
Not "weaker" but "more brittle" based on the crystalline structure
of the metal. ...just wondering where it came from.

The property called "brittle" is not an indication of weak or strong it's
only a description of what type of failure had occurred. It could have
been a brittle failure from high stress loads or low ones, depending on
the material.

Alvin in AZ

 

Broncograveyard has SS bolt kits.

 

"all corrosion is electrical"
"adding stainless steel fasteners can make the corrosion situation worse"
-Richard "Curly" Hastings, metallurgist

While your new stainless steel fastners are wet there will be an electric
current going and the direction will be in such a way the iron fenders etc
will be sacrificing themselves to protect your stainless steel fasteners.
Believe it? :)
Same with tin or chrome plated stuff, no kidding. :/

Zinc or aluminum coated fasteners would be doing just the opposite.

Do whatever you want, just know what's going on and it's cool. :)

Alvin in AZ

 

Ok - maybe not "normal" for your neck of the woods (let's see some pics of your truck by the way - none in gallery), but come out here for a weekend. In fact I'll be at barstow starting tomorrow night for the "Mojave 250" race. There will be plenty of trucks out there doing exactly what that video showed.

It's "normal" in some of my stuff/group is the point I was making. It won't be normal for the crew cab as that is the tow/recovery vehicle and I need to be sure it can get us home!



Did I say weak or strong? No, I said brittle. Brittle is a adjective, describing a characteristic of hardness, and therefore prone to shearing rather than bending.
How about an example:
Say I am holding 2 pieces of steel in my hand. Same alloy - lets say 1020 carbon steel to keep it simple. One piece is as it came from the mill. The other I heated with a torch until red hot and immediately quenched it in ice water. You would say that the quenced piece is no more brittle than the non quenced piece due to the fact that is has not failed/broken yet? From what you wrote something cannot be brittle until it has failed and you see what kind of failure occured

 

I didn't look at the video.
I've seen stuff like that before.
I was more into dirt bikes and motocross.

FTE gallery? Ick. :/
That thing sucks, FTE re-samples the pictures and makes 'em grainy.
I find it funny needing a picture of my pickup tho. LOL :)

Don't you know what a Wimbledon white '75 F150 on 235/85-16E's with
no chrome and no radio antenna looks like? ;)

You couldn't back pedal and just simply say...
"I meant normal for a race truck"? :)

What's desert got to do with how that one is being driven?
Can't rust belt trucks be driven like that too? ;)

Yes, it's usually thought of by the less informed that brittleness is only a
characteristic of hardness. But that isn't true. Zinc is both soft and brittle
for just one example.

That was the point of what I was saying, brittleness is separate from
hardness.

The failure description "brittle" is secondary to how strong a bolt is.

Titanium and copper are both notch sensitive.

What type of failure is to be expected silly. :)
Brittleness is about failure.

If you only get it red hot (red hot in the dark or red hot in the bright sun?;)
all you've done is draw out what little work hardening the piece might have
had to start with, BTW. ;)

http://www.panix.com/~alvinj/file12/graphIC.jpg
Red hot in the dark is ~750F.

"Metallurgy Theory and Practice" by Dell K. Allen
amazon.com
Buy a copy and if you don't like it, I'll buy it from you. :)

Alvin in AZ