Threads and Threading - Sportpilot.info
Threads and Threading - Sportpilot.info
Threads and Threading - Sportpilot.info
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1806 METRIC SCREW THREADS MJ PROFILE<br />
Table 2. ANSI St<strong>and</strong>ard Metric Screw <strong>Threads</strong> MJ Profile, Diameter-Pitch<br />
Combinations for Aerospace ANSI/ASME B1.21M-1997<br />
Nom.<br />
Size a Pitch<br />
Aerospace Screws, Bolts <strong>and</strong> Nuts Aerospace Fluid System Fittings<br />
Nom.<br />
Size Pitch<br />
Machinery's H<strong>and</strong>book 27th Edition<br />
Nom.<br />
Size Pitch<br />
Nom.<br />
Size Pitch<br />
Nom.<br />
Size Pitch<br />
Nom.<br />
Size Pitch<br />
Nom.<br />
Size Pitch<br />
1.6 0.35 5 0.8 14 1.5 27 2 8 1 20 1.5 36 1.5<br />
2 0.4 6 1 16 1.5 30 2 10 1 22 1.5 39 1.5<br />
2.5 0.45 7 1 18 1.5 33 2 12 1.25 24 1.5 42 2<br />
3 0.5 8 1 20 1.5 36 2 14 1.5 27 1.5 48 2<br />
3.5 0.6 10 1.25 22 1.5 39 2 16 1.5 30 1.5 50 2<br />
4 0.7 12 1.25 24 2 … … 18 1.5 33 1.5 … …<br />
All dimensions are in millimeters.<br />
a For threads smaller than 1.6 mm nominal size, use miuniature screw threads (ANSI B1.10M).<br />
Fig. 1. Internal MJ Thread Basic <strong>and</strong> Design Profiles (Top) <strong>and</strong> External MJ Thread<br />
Basic <strong>and</strong> Design Profiles (Bottom) Showing Tolerance Zones<br />
Copyright 2004, Industrial Press, Inc., New York, NY