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ISO Metric

ISO Metric Miniature Thread

Very small metric threads below M1 for watches, instruments and micro-mechanics.

Standard
DIN 14-2
Flank angle
60°
Sizes listed
8
Range
M 0.30 – M 0.90
Profile shape (schematic, not to scale)

Nominal Diameter mmPitch mmTapping Drill Size mm (D − P)Minor Diameter D1 mm
M 0.300.0800.220.223
M 0.350.0900.260.264
M 0.400.1000.300.304
M 0.500.1250.380.380
M 0.600.1500.450.456
M 0.700.1750.520.532
M 0.800.2000.600.608
M 0.900.2250.680.684
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Related Standards

ISO Metric Coarse Thread DIN 13-1 / ISO 261 40 rows · M 1.0 – M 68.0 ISO Metric Fine Thread, pitch 1 and 1.25 DIN 13-5 112 rows · M 7.5 – M 200.0 ISO Metric Fine Thread, pitch 1.5 DIN 13-6 136 rows · M 12.0 – M 300.0 ISO Metric Fine Thread, pitch 0.5 DIN 13-3 119 rows · M 3.5 – M 90.0 ISO Metric Fine Thread, pitch 0.75 DIN 13-4 93 rows · M 5.0 – M 110.0 ISO Metric Fine Thread, pitch 2 DIN 13-7 128 rows · M 17.0 – M 300.0

Reference values only. Verify against the current edition of the governing standard before use in production drawings or manufacturing. Provided by Micro Components as a free engineering resource.