Standard Specification for
Hardened Steel Washers [Metric]
AASHTO Designation: M 293M-06
ASTM Designation: F 436M-04
AASHTO M 293M-06 is identical to ASTM F 436M-04 except for the following provisions:
1.All references to the ASTM standards contained in ASTM F 436M-04, listed in the following table,
shall be replaced with the corresponding AASHTO standard.
2. Add Sections 10.3 and 4 to Section IO of ASTM F 436M-04 as follows:
10.3 If zinc-coated washers are supplied, hardness testing shall be performed after zinc coating.
The zinc coating shall be removed prior to taking hardness measurements.
10.4 If zinc-coated washers are supplied, the thickness of the zinc coating shall be measured.
3.3. Replace Section 1l of ASTM F 436M-04 with the following:
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