Washers provide a smooth
bearing surface and are used under the
head of a bolt and / or a nut. The chemical,
mechanical, and dimensional requirements
for hardened washers are covered under
the ASTM specification F436. These washers
are through hardened or carburized to
add strength, but are physically smaller
than a standard F844 flat washer. They
are the recommended washer for any fastener
other than a low carbon steel bolt.
STOCK
Diameters: 1/2 2-3/4
Origin: Domestic
Finish: Black and hot-dip galvanized
