ISO 12257:2008
Current
Date published:
Aerospace — Internal six-lobe drives — Metric series
ISO 12257:2008 specifies the dimensions of metric internal six-lobe drives used in metric screws in nominal thread diameter range 3 mm to 20 mm.
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Related Information
49.030.20 Bolts, screws, studs
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ISO 12257:2008
Get this standard
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PDF
( Single user document)
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