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BS EN ISO 4032:2023
Fasteners. Hexagon regular nuts (style 1) (British Standard)
This document specifies the characteristics of hexagon regular nuts (style 1), in steel and stainless steel, with metric coarse pitch thread M5 to M39, and with product grades A and B.
NOTE For nuts with sizes D < M5 and D > M39, see Annex A.
If in certain cases other specifications are requested, property classes and stainless steel grades can be selected from ISO 898-2 or ISO 3506-2.
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British Standards Institution [bsi]
British Standards Institution [bsi]