• AS 3635-1990

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    Unified (ISO inch) screw threads, associated gauges, and gauging practice (Reconfirmed 2017)

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

    Language(s):  English

    Published date:  11-12-1990

    Publisher:  Standards Australia

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    Abstract - (Show below) - (Hide below)

    Specifies requirements for parallel screw threads having the Unified thread form for the diameter size range No. 0 (0.060 in) to 6 in inclusive. Limits of size for the Unified coarse, fine, extra fine, and constant pitch screws and a supplementary series of Unified threads of diameter greater than 6 in are given. It also covers screw gauges, associated check and setting gauges, and plug gauges with information being given on types of gauges, materials and hardness, general gauge design requirements, marking, and general notes on inspection of screw threads. Appendices give the basis of tabulated values, examples for calculating the limits of size of untabulated screw threads, notes on the production of external threads, notes on pitch and flank angle errors, notes on recommended system for gauging coated threads, and the limiting dimension of screw gauges for the more commonly used Unified threads.

    Scope - (Show below) - (Hide below)

    This Standard specifies requirements for parallel screw threads, associated gauges, and gauging practice, having the Unified thread form and covering the diameter size range No 0 (0.060 in) to 6 in inclusive.The Standard gives information on tolerances, deviations, thread classes, and designations.A supplementary series of Unified threads (UNS) is given in Appendix A for guidance on Unified threads of diameter greater than 6 in, and non-standard diameter/pitch combinations, which may be required for special applications.Appendices give the basis of the tabulated values (Appendix B), examples for calculating the limits of size of untabulated screw threads (Appendix C), notes on the production of external threads (Appendix D), notes on pitch and flank angle errors (Appendix F), notes on the function and checking of gauges (Appendix E), notes on a recommended system for gauging coated threads (Appendix G), notes on the setting of adjustable screw ring gauges (Appendix H), and the limiting dimensions of screw gauges for the more commonly used Unified threads (Appendix I).NOTES:1. Unified screw threads are also known as the ISO inch series screw threads. These screw threads are obsolescent and should not be used in new designs.2. Because of the methods adopted for rounding the tabulated values (see Appendix B), the values for the various parameters given in the tables are to be taken as authoritative for the application of this Standard.3. The information given in Appendix A may also be used for calculating screw thread parameters for diameters greater than 6 in.

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

    Committee ME/28
    Document Type Standard
    Product Note Reconfirmed 07/07/2017.
    This standard has been reconfirmed in Australia in 2017 and remains current in New Zealand. <a href="https://infostore.saiglobal.com/PDFReconfirmed/3635-1990_reconfirm.pdf">Reconfirmation Notice 07/07/2017</a>
    Publisher Standards Australia
    Status Current
    Supersedes

    History - (Show below) - (Hide below)

    Reconfirmed 2017. First published as part of AS B133-1955 (endorsement of BS 1580:1953 without amendment). Revised and redesignated AS B133, Parts 1 and 2-1963 (endorsement of BS 1580:Parts 1 and 2:1962 without amendment). AS B133.3 first published 1963 (endorsement of BS 1580:Part 3:1965 without amendment). AS B121.1 first published 1962 (endorsement of BS 919:Part 1:1960 with amendment). AS B121.4 first published 1965 (endorsement of BS 919:Part 4:1965 without amendment). AS B133, Parts 1 and 2-1963, AS B133.3-1963, AS B121.1-1962 and AS B121.4-1965 revised, amalgamated and redesignated AS 3635-1990.

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

    AS 1014-1986 Gauging of metric screw threads (Reconfirmed 2018)
    AS 2710-1984 Screw gauges - Verification
    AS B129-1968 Designs for geometric limit gauges (plain and screwed in inch units)

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

    AS 2470-2005 Steel cylinders for compressed gases - Welded three-piece construction with longitudinal joint - 11 kg to 150 kg
    AS 2469-1998 Steel cylinders for compressed gases - Welded two-piece construction - 0.1 kg to 35 kg
    AS/NZS 2465:1999 Unified hexagon bolts, screws and nuts (UNC and UNF threads)
    AS 1718-1992 Water supply - Copper alloy screw-down pattern taps - Specified by dimensions
    AS 1777-2005 Aluminium cylinders for compressed gases - Seamless - 0.1 kg to 130 kg
    AS 2030.1-2009 Gas cylinders General requirements
    AS 3577-2006 Steel cylinders for compressed gases - Welded - 150 kg to 500 kg
    AS 2030.1-1999 The verification, filling, inspection, testing and maintenance of cylinders for storage and transport of compressed gases - Cylinders for compressed gases other than acetylene
    AS/NZS 3718:2005 Water supply - Tap ware (Reconfirmed 2016)
    AS 4397-2007 Electroplated coatings of zinc on steel fasteners with imperial threads
    AS 2764-2002 Fibre reinforced plastics (FRP) aluminium alloy gas cylinders - Hoop overwrapped
    AS 2469-2005 Steel cylinders for compressed gases - Welded two-piece construction - 0.1 kg to 150 kg
    AS 1777-1995 Aluminium cylinders for compressed gases - Seamless - 0.1 kg to 130 kg
    AS 4397-1996 Electroplated coatings of zinc on steel fasteners with imperial threads
    AS/NZS 3584.3:2012 Diesel engine systems for underground coal mines Maintenance
    AS 2470-1998 Steel cylinders for compressed gases - Welded three-piece construction with longitudinal joint - 11 kg to 150 kg
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