[Healeys] [off] graded & ss bolt comparisons

Steve B. Gerow steveg at abrazosdata.com
Fri Dec 5 07:15:14 MST 2008

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:

This site shows tensile strength of common 18-8 SS bolts vs the others--it is below Grade 5:

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:

Steve Gerow
Pasadena CA
59 BN6

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