ASTM F844-00
(Specification)Standard Specification for Washers, Steel, Plain (Flat), Unhardened for General Use
Standard Specification for Washers, Steel, Plain (Flat), Unhardened for General Use
SCOPE
1.1 This specification covers round and miscellaneous shape steel plain (flat) washers furnished in an unhardened condition.
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Standards Content (Sample)
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Designation: F 844 – 00
Standard Specification for
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Washers, Steel, Plain (Flat), Unhardened for General Use
This standard is issued under the fixed designation F 844; 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.
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1. Scope * Washers, and Rivets
F 1470 Guide for Fastener Sampling for Specified Mechani-
1.1 This specification covers round and miscellaneous shape
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cal Properties and Performance Inspection
steel plain (flat) washers furnished in an unhardened condition.
2.2 ANSI/ASME Standards:
1.2 The washers are intended for general use bolt, nut, and
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B18.22.1 Plain Washers
stud applications to provide increased bearing surface, spacing,
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B18.24.1 Part Identifying Number (PIN) Code System
and to prevent galling.
2.3 Military Specification:
1.3 Unless otherwise specified, the washers are furnished
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DOD-P-16232 Phosphate Coating for Ferrous Metals
with dimensions conforming to American National Standard
2.4 Federal Specification:
B18.22.1 , Type A, Tables 1A and Tables 1B.
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QQ-P-416 Plating, Cadmium (Electrodeposited)
1.4 Hardened washers for use with heat-treated structural
bolts are covered by Specifications F 436 and F 436M.
3. Ordering Information
2. Referenced Documents 3.1 Orders for washers under this specification shall in-
clude:
2.1 ASTM Standards:
3.1.1 Quantity (number of pieces of same item and size).
A 29/A29M Specification for Steel Bars, Carbon and Alloy,
3.1.2 Name of item (steel plain washers).
Hot-Wrought and Cold-Finished, General Requirements
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3.1.3 Size (Nominal inside diameter and thickness. Include
for
outside diameter, when required).
A 153 Specification for Zinc Coating (Hot-Dip) on Iron and
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3.2 The following requirements are optional and may be
Steel Hardware
specified when required:
A 568/A568M Specification for Steel, Sheet, Carbon, and
3.2.1 Dimensions if other than ANSI B18.22.1, Type A.
High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
4 3.2.2 Finish if other than oiled (see 4.3 through 4.3.6).
General Requirements for
3.2.3 Chemical composition, if required (see 5.1.2).
A 751 Test Methods, Practices, and Terminology for
4 3.2.4 Hardness, if required (see 6.2).
Chemical Analysis of Steel Products
3.2.5 Shipment lot Testing, if required (see 9.2).
B 633 Specification for Electrodeposited Coatings of Zinc
5 3.2.6 Test Reports, if required (see Section 12).
on Iron and Steel
3.2.7 Marking, if required (see 14.1).
B 695 Specification for Coatings of Zinc Mechanically
5 3.2.8 For establishment of a part identifying system, see
Deposited on Iron and Steel
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ASME B18.24.1.
D 3951 Practice for Commercial Packaging
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F 436 Specification for Hardened Steel Washers
4. Materials and Manufacture
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F 436M Specification for Hardened Steel Washers [Metric]
4.1 Material—The washers shall be punched from hot-
F 606 Test Methods for Determining the Mechanical Prop-
rolled, hot-rolled and pickled, or cold-rolled steel; or shall be
erties of Externally and Internally Threaded Fasteners,
machined from bar stock or tubing; or shall be forged at the
manufacturer’s option.
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This specification is under the jurisdiction of Committee F16 on Fasteners and 4.2 Burr Removal—The washers shall be tumbled, vibrated,
is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets, and
or otherwise processed to minimize burrs.
Washers.
Current edition approved May 10, 2000. Published July 2000. Originally
published as F 844–83. Last previous edition F 844 – 98.
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Annual Book of ASTM Standards, Vol 01.05. Available from American National Standards Institute, 11 West 42nd Street,
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Annual Book of ASTM Standards, Vol 01.06. 13th Floor, New York, NY 10036.
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Annual Book of ASTM Standards, Vol 01.03. Available from American Society of Mechanical Engineers, Three Park
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Annual Book of ASTM Standards, Vol 02.05. Avenue, New York, NY 10016–5990.
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Annual Book of ASTM Standards, Vol 15.09. Available from Standardization Documents Order Desk, Bldg. 4 Section D,
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Annual Book of ASTM Standards, Vol 01.08. 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
*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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F 844
4.3 Protective Finishes: selected washers from the product to be shipped and report the
4.3.1 Unprotected Washers—Unless otherwise specified, results to the purchaser. In addition, if heat and lot identities
the washer shall be furnished plain, with no protective finish have been maintai
...
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