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  • AS/NZS 4291.2:1995

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Mechanical properties of fasteners Nuts with specified proof load values - Coarse thread

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  30-06-2017

    Language(s):  English

    Published date:  05-09-1995

    Publisher:  Standards Australia

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    Abstract - (Show below) - (Hide below)

    Specifies materials, mechanical properties and marking requirements for steel nuts of property classes 4, 5, 6, 8, 9, 10 and 12 with ISO metric coarse pitch threads and diameters up to and including 39 mm. The property class system is explained and test methods for determination of mechanical properties are given. Identical with and reproduced from ISO 898-2:1992.

    Scope - (Show below) - (Hide below)

    This International Standard specifies the mechanical properties of nuts with specified proof load values when tested at room temperature (see ISO 1). Properties will vary at higher and lower temperature.It applies to nuts- with nominal thread diameters up to and including 39 mm;- of triangular ISO thread and with diameters and pitches according to ISO 68 and ISO 262 (coarse thread);- with diameter/pitch combinations according to ISO 261 (coarse thread);- with thread tolerances 6H according to ISO 965-1 and ISO 965-2;- with specific mechanical requirements;- with widths across flats as specified in ISO 272 or equivalent;- with nominal heights greater than or equal to 0,5D*;- made of carbon steel or low alloy steel.It does not apply to nuts requiring special properties such as- locking abilities (see ISO 2320);- weldability;- corrosion resistance (see ISO 3506);- ability to withstand temperatures above + 300°C or below - 50°C.NOTES1 Nuts made from free-cutting steel should not be used above + 250°C.2 For special products such as nuts for high-strength structural bolting, and overtapped nuts for use with hot dipped galvanized bolts, see the product standards for appropriate values.3 For assemblies with threads having tolerances wider than 6H/6g, there is an increased risk of stripping; see also table 1.4 In the case of thread tolerances other or larger than 6H a decrease of the stripping strength should be considered (see table 1).

    General Product Information - (Show below) - (Hide below)

    Committee ME-029
    Document Type Standard
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Under Revision

    History - (Show below) - (Hide below)

    First published as AS/NZS 4291.2:1995.

    Standards Referenced By This Book - (Show below) - (Hide below)

    AS/NZS 4291.1:1995 Mechanical properties of fasteners Bolts, screws and studs
    AS/NZS 1111:1996 ISO metric hexagon commercial bolts and screws
    AS/NZS 1112:1996 ISO metric hexagon nuts, including thin nuts, slotted nuts and castle nuts
    AS 4291.1-2000 Mechanical properties of fasteners made of carbon steel and alloy steel - Bolts, screws and studs
    AS 1815-1991 Metallic materials - Rockwell hardness test
    AS 1816-1990 Metallic materials - Brinell hardness test
    AS 1817-1991 Metallic materials - Vickers hardness test
    AS/NZS 1110:1995 ISO metric precision hexagon bolts and screws
    AS 1721-1985 General purpose metric screw threads
    AS 1654-1974 Limits and fits for engineering (Metric units)

    Standards Referencing This Book - (Show below) - (Hide below)

    AS 2294.2-1997 Earth-moving machinery - Protective structures - Laboratory tests and performance requirements for roll-over protective structures
    AS 2294.3-1997 Earth-moving machinery - Protective structures - Laboratory tests and performance requirements for falling-object protective structures
    AS/NZS 2451:1998 Bolts, screws and nuts with British Standard Whitworth threads (rationalized series)
    AS 5047-2005 Hydraulic shoring and trench lining equipment
    AS/NZS 4998:2009 Bolted unrestrained mechanical couplings for waterworks purposes (Reconfirmed 2022)
    AS/NZS 4793:2009 Mechanical tapping bands for waterworks purposes
    AS/NZS 4087:2011 Metallic flanges for waterworks purposes
    AS/NZS 1252:1996 High-strength steel bolts with associated nuts and washers for structural engineering
    AS/NZS 1112:1996 ISO metric hexagon nuts, including thin nuts, slotted nuts and castle nuts
    AS/NZS 1559:1997 Hot-dip galvanized steel bolts and associated nuts and washers for tower construction
    AS 3533.2-2009 Amusement rides and devices Operation and maintenance
    AS 4291.1-2000 Mechanical properties of fasteners made of carbon steel and alloy steel - Bolts, screws and studs
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