ISO 7040:2012 specifies the characteristics of prevailing torque type hexagon regular nuts (with non-metallic insert) with threads from M3 up to and including M36, in product grade A for threads up to and including M16 and product grade B for threads above M16, and with property classes 5, 8 and 10.
Status: PublishedPublication date: 2012-12
Edition: 3Number of pages: 4
Technical Committee: ISO/TC 2/SC 12 Fasteners with metric internal thread
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