ASTM F436M-04

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Designation: F 436M – 04
Standard Specification for
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Hardened Steel Washers (Metric)
This standard is issued under the fixed designation F 436M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 2. Referenced Documents
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1.1 This specification covers the chemical, mechanical, and 2.1 ASTM Standards:
dimensional requirements for metric hardened steel washers A 153/A 153M Specification for Zinc Coating (Hot-Dip) on
for use with fasteners having nominal thread diameters M12 Iron and Steel Hardware
throughM100.Thesewashersareintendedforgeneral-purpose A 242/A 242M Specification for High-Strength Low-Alloy
mechanical and structural use with bolts, nuts, studs, and other Structural Steel
internally and externally threaded fasteners. These washers are A 325M Specification for Structural Bolts, Steel, Heat
suitable for use with fasteners covered in Specifications Treated 830 MPa Minimum Tensile Strength [Metric]
A 325M,A 490M,A 563M and with fasteners of Specification A 490M Specification for High-Strength Steel Bolts,
F 568 property classes 8.8 and higher. Classes10.9and10.9.3,forStructuralSteelJoints[Metric]
1.2 The types of washers covered in this specification are: A 563M Specification for Carbon and Alloy Steel Nuts
1.2.1 Type 1—Washers made of carbon steel. [Metric]
1.2.2 Type 3—Washers made of steel having atmospheric A 588/A 588M Specification for High-Strength Low-Alloy
corrosion resistance and weathering characteristics comparable Structural Steel with 50 ksi [345 MPa] Minimum Yield
to that of steels covered in Specifications A 242/A 242M, Point to 4-in. [100-mm] Thick
A 588/A 588M, and A 709/A 709M. The atmospheric corro- A 709/A 709M Specification for Carbon and High-Strength
sion resistance of these steels is substantially better than that of Low-Alloy Structural Steel Shapes, Plates, and Bars and
carbon steel with or without copper addition. See 5.1. When Quenched-and-Tempered Alloy Structural Steel Plates for
properly exposed to the atmosphere, these steels can be used Bridges
bare (uncoated) for many applications. A 751 Test Methods, Practices, and Terminology for
1.3 The styles of washers covered in this specification are: Chemical Analysis of Steel Products
1.3.1 Circular Washers—Circular washers in nominal sizes B 695 Specification for Coatings of Zinc Mechanically
12 mm through 100 mm, are suitable for applications where Deposited on Iron and Steel
sufficient space exists and angularity permits. D 3951 Practice for Commercial Packaging
1.3.2 Beveled Washers—Beveled washers are square and F 568M SpecificationforCarbonandAlloySteelExternally
rectangular, in nominal sizes 12 mm through 36 mm, with a Threaded Metric Fasteners
beveled 1:6 surface for use withAmerican Standard beams and F 606M Test Methods for Determining the Mechanical
channels. Properties of Externally and InternallyThreaded Fasteners,
1.3.3 Clipped Washers—Clipped washers are circular or Washers, and Rivets [Metric]
beveled for use where space limitations necessitate that one F 1789 Terminology for F16 Mechanical Fasteners
side be clipped. G 101 Guide for Estimating the Atmospheric Corrosion
Resistance of Low-Alloy Steels
NOTE 1—This specification is the metric counterpart of Specification
F 436.
1.4 Terms used in this specification are defined in Termi-
nology F 1789 unless otherwise defined herein.
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This specification is under the jurisdiction of ASTM Committee F16 on
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Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Nuts, Rivets and Washers. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Aug. 1, 2004. Published August 2004. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1983. Last previous edition approved in 2003 as F 436M – 03. the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F436M–04
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TABLE 1 Chemical Requirements
2.2 ANSI Standard:
B 18.23.2M Metric Beveled Washers Composition, %
Element
A
Type 1 Type 3
3. Ordering Information
Phosphorus, max
Heat analysis 0.040 0.040
3.1 Orders for washers under this specification shall include
Product analysis 0.050 0.045
the following:
Sulfur, max
3.1.1 Quantity,
Heat analysis 0.050 0.050
3.1
...