SAE MA 1370:1990
$25.35
Screw Threads – MJ Profile, Metric
Published By | Publication Date | Number of Pages |
SAE | 1990-01-31 | 38 |
This standard specifies the characteristics of the MJ profile metric series of screw threads, altered from ISO 68 M Profile, to include a mandatory controlled radius of 0.18042P to 0.15011P at the root of the external thread and with the minor diameter of both external and internal threads increased to provide a basic thread height of 0.5625H in order to accommodate the external thread maximum root radius. The following detailed requirements are included:
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a
MJ basic profile and design profiles
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b
Standard series of diameter-pitch combinations for nominal thread diameters from 1.6 to 200 mm
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c
Standard thread classes and form tolerances
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d
Formulae for thread dimensions and tolerances
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e
Method of designating MJ threads
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f
Inspection requirement
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g
Tables for selected diameter-pitch combinations for aerospace screws, bolts, nuts, shaft and bearing retaining screw threads, and fluid fittings thread sizes
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h
Tables for MJ screw threads limiting dimensions and tolerances
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i
Symbols for MJ thread dimensions and tolerances