On Tue, 12 Apr 2011 07:16:49 -0700, "Bob La Londe"
wrote:

"Ned Simmons" wrote in message
.. .
On Tue, 12 Apr 2011 06:48:05 -0700, "Bob La Londe"
wrote:



Ok.... now I have my two grades. LOL. 316 is about Grade 5, and 17-4 is
about Grade 8. I am guessing the 316 would be full hardness to make grade
5
since it's a work hardening spring steel stainless.

Thanks guys.



A typical 316 SS screw has a tensile strength comparable to a grade 2
carbon steel fastener, around 70,000 psi.

So are you saying that 18-8 which is a the most common stainless hardware is
even lower strength than grade 2?

I'm saying I don't think you can count on common 18-8, 304, or 316
fasteners to be any stronger than grade 2. Individual lots or samples
may be either side of grade 2's, but absent some sort of spec beyond a
simple material designation, there are no guarantees.

--
Ned Simmons