"Bob La Londe" fired this volley in news:bYcNt.119471
:

We only stocked a few
grade 2 in certain sizes for farmers that used them as shear pins on
equipment.

ditto... I use 1/2" x 5" grade 2 for shear pins in my bush hog's PTO
shaft. Not fer nothin' else... (but they're as expensive as grade 8,
now, if you buy them from a hardware store!)

LLoyd