[Healeys] [off] graded & ss bolt comparisons

[Steve B. Gerow]

I was curious about this and a few minutes googling came up with the following:

Here is a website documenting the overall superiority of Grade 8 bolts to Grade 5 bolts in every respect except expense:
http://www.rockcrawler.com/techreports/fasteners/index.asp

This site shows tensile strength of common 18-8 SS bolts vs the others--it is below Grade 5:
http://www.geocities.com/dtmcbride/home_garden/bolts.html

The first site explains Shear Strength is a percentage function of Tensile Strength and the Grade 5 bolt has failed before the Grade 8 bolt begins to distort.

Here is a useful FAQ on bolts, nuts, lockwashers etc:
http://www.boltscience.com/pages/faq.htm

-- 
Steve Gerow
Pasadena CA
59 BN6