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  • BS 1580-3:2007

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    Unified screw threads Screw threads with diameters below ¼ in. Requirements

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-12-2007

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions and symbols
    4 Thread profiles
    5 Diameter/pitch combinations
    6 Tolerance classes
    7 Tolerances, allowances and limits of size for uncoated threads
    8 Coated threads
    9 Designation of threads
    10 Gauges
    Annexes
    Annex A (normative) - Unified screw threads below [1/4] in
            diameter for attachment purposes and for general use
            in the aircraft industry
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes limits of sizes, and tolerances, for single-start, clearance-fit unified screw threads, in inch units with diameters below [1/4] in.

    Scope - (Show below) - (Hide below)

    This part of BS1580 specifies limits of sizes, and tolerances, for single-start, clearance-fit unified screw threads, in inch units with diameters below in. This part of BS1580 specifies unified screw threads from Number 0 (0.060 in diameter) to Number 12 (0.216 in diameter), known as the “numbered sizes” in the following standard series: a coarse thread (UNC) series; a fine thread (UNF) series; for Number 12 threads, an extra fine (UNEF) 32 threads per inch diameter/pitch combination. NOTE Unified screw threads below in diameter for attachment purposes and for general use in the aircraft industry are specified in AnnexA.

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

    Committee FME/9
    Development Note Supersedes BS 1580-3(1965) & 07/30158492 DC. (12/2007) Reviewed and confirmed by BSI, October 2012. (09/2012)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    BS 3382-1&2(1961) : 1961 SPECIFICATION FOR ELECTROPLATED COATINGS ON THREADED COMPONENTS - CADMIUM ON STEEL COMPONENTS - ZINC ON STEEL COMPONENTS
    BS 6528:1984 GLOSSARY OF TERMS FOR CYLINDRICAL SCREW THREADS
    BS 93:1951 SPECIFICATION FOR BRITISH ASSOCIATION (B.A.) SCREW THREADS WITH TOLERANCES FOR SIZES 0 B.A. TO 16 B.A.
    BS 1580-1:2007 Unified screw threads Screw threads with diameters ¼ in and larger. Requirements
    BS 3382-7:1966 SPECIFICATION FOR ELECTROPLATED COATINGS ON THREADED COMPONENTS - THICKER PLATINGS FOR THREADED COMPONENTS
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