Abstract
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.
General information
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Status: PublishedPublication date: 2008-08Stage: International Standard under systematic review [90.20]
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Edition: 1Number of pages: 2
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Technical Committee :ISO/TC 20/SC 4ICS :49.030.20
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