Browse Standards MA1518
WIP 2012-01-17

Bolts, Screws and Nuts - External Wrenching, Metric Threads - Design Parameters for MA1518

<p>To fully define the following requirements for bolts with spline and hexagon heads of strength class up to but no including 1250 MPa:</p> <p>a. Head dimensions (see 3.1)</p> <p>b. Shank dimensions (see 3.2)</p> <p>c. Geometric control (see 3.3)</p> <p>d. Surface texture (see 3.4)</p> <p>This document is based on one class of thread after all processing, including coating or plating, has been completed as follows: tolerance class 4h6h. </p> <p>For particulars of thread, see AS1370. For thread runout and lead threads, see AS3062. </p> <p>To fully define the following requirements for nuts with spline, plain hexagon and castellated configurations of strength class up to and including 1100 MPa: </p> <p>a. Nut dimensions (see 4.1)</p> <p>b. Geometric control (see 4.2)</p> <p>c. Surface texture (see 4.3)</p> <p>For particulars of threads, see AS1370. </p> <p>This document is based on the following classes of internal threads after all processing, including coating or plating, has been completed: </p> <p>Tolerance class 4H6H for sizes up to and including 5 mm </p> <p>Tolerance class 4H5H for size 6 mm and larger </p> <p>For particulars of thread, see AS1370.</p>
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