1 Scope
This part of ISO 6157 establishes limits for various types of surface discontinuities
on nuts. It applies to nuts with
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– nominal thread diameters from 5 mm up to and including 39 mm;
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– product grades A and B;
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– all property classes according to ISO 898-2 and ISO 898-6, unless otherwise specified in product standards or agreed between supplier and purchaser.