Standard Specification for
Hardened Steel Washers
AASHTO Designation: M 293-06
ASTM Designation: F 436-04
AASHTO M 293-06 is identical to ASTM F 436-04 except for the following provisions:
1.I. All references to the ASTM standards contained in ASTM F 436-04, listed in the following table,
shall be replaced with the corresponding AASHTO standard.
Referenced Standards
ASTM AASHTO
A 153 M232M/M 232
A325 Ml64
A490 M253
A 709/A 709 MM270M/M 270
B 695 M298
2.Add Sections 10.3 and 10.4 to Section 10 of ASTM F 436-04 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.Replace Section 14.1 of ASTM F 436-04 with the following:
14.1 The party responsible for the washers shall be the organization that supplies the washers to the purchaser.
The responsible party shall supply test reports, certified by the manufacturer, that indicate the washers were manufactured, sampled, tested,
and inspected in accordance with this specification and all of its requirements.
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