ASTM F436 - 11

    Standard Specification for Hardened Steel Washers

    Active Standard ASTM F436 | Developed by Subcommittee: F16.02

    Book of Standards Volume: 01.08


      Format Pages Price  
    PDF 6 $43.00   ADD TO CART
    Hardcopy (shipping and handling) 6 $43.00   ADD TO CART
    Standard + Redline PDF Bundle 12 $51.60   ADD TO CART


    Abstract

    This specification covers the chemical, mechanical, and dimensional requirements for hardened steel washers for use with fasteners having nominal thread diameters of ¼ through 4 in. These washers are intended for general-purpose mechanical and structural use with bolts, nuts, studs, and other internally and externally threaded fasteners. The types of washers covered here are: Type 1washers made of carbon steel; and Type 3washers made of weathering steel. Moreover, the styles of washers covered here are: circular washers, which are suitable for applications where sufficient space exists and angularity permits; beveled washers, which are square and rectangular with a beveled 1:6 surface for use with American Standard beams and channels; and clipped washers, which are circular or beveled for use where space limitations necessitate that one side be clipped. Steels to be used to manufacture the washers shall be produced by the open-hearth, basic-oxygen, or electric-furnace process. Each type and style of washer shall be suitably sampled, and should conform to specified values of chemical composition, Rockwell hardness, inside and outside diameter, thickness, and clipped width.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers the chemical, mechanical, and dimensional requirements for hardened steel washers for use with fasteners having nominal thread diameters of ¼ through 4 in. These washers are intended for general-purpose mechanical and structural use with bolts, nuts, studs, and other internally and externally threaded fasteners. These washers are suitable for use with fasteners covered in Specifications A325, A354, A449, and A490.

    1.2 The washers are designated by type denoting the material and by style denoting the shape.

    1.2.1 The types of washers covered are:

    1.2.1.1 Type 1Carbon steel.

    1.2.1.2 Type 3Weathering steel. Atmospheric corrosion resistance and weathering characteristics are comparable to that of steels covered in Specifications A588/A588M and A709/A709M. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition. See 5.1. When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications.

    1.2.1.3 This specification provides for furnishing Type 3 to chemical composition or a Corrosion Index (CRI) of 6 or higher at the suppliers option.

    1.2.2 The styles of washers covered are:

    1.2.2.1 CircularCircular washers in nominal bolt sizes ¼ through 4 in. suitable for applications where sufficient space exists and angularity permits.

    1.2.2.2 BeveledBeveled washers are square or rectangular, in nominal sizes 1/2 through 1½ in., with a beveled 1 to 6 ratio surface for use with American standard beams and channels.

    1.2.2.3 ClippedClipped washers are circular or beveled for use where space limitations necessitate that one side be clipped.

    1.2.2.4 Extra ThickExtra thick washers are circular washers in nominal sizes 1/2through 1½ in., with a nominal thickness of 5/16 in. suitable for structural applications with oversized holes.

    1.3 Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.

    1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

    Note 1—A complete metric companion to Specification F436M has been developedSpecification F436M; therefore no metric equivalents are presented in this specification.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

    A354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners

    A449 Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use

    A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength

    A588/A588M Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance

    A709/A709M Specification for Structural Steel for Bridges

    A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

    B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel

    D3951 Practice for Commercial Packaging

    F436M Specification for Hardened Steel Washers (Metric)

    F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets

    F1136 Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners

    F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection

    F1789 Terminology for F16 Mechanical Fasteners

    F2329 Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners

    G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels


    ICS Code

    ICS Number Code 21.060.20 (Nuts)

    UNSPSC Code

    UNSPSC Code 31161800(Washers)


    DOI: 10.1520/F0436-11

    ASTM International is a member of CrossRef.

    ASTM F436

    Citing ASTM Standards
    Back to Top