M00004541
New product
ISO 272:1982 Fasteners - Hexagon products - Widths across flats
standard by International Organization for Standardization, 01/01/1982
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Availability date: 2021-11-25
Specifies the widths to be used in the respective product standards; it sets out a logical ratio between underhead (or nut) bearing area and the tensile stress area of the screw thread.