SIST ISO 272:2000 PDF
Fasteners -- Hexagon products -- Widths across flats
Fasteners -- Hexagon products -- Widths across flats
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 3
- Дата публикации:
- 1 апреля 1996 г.
- ICS:
- 21.060.01
- Технический комитет:
- ISEL - Mechanical elements
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.
Abstract
Overview
SIST ISO 272:2000 is an international standard developed by the International Organization for Standardization (ISO) that specifies the widths across flats for hexagon fastener products. This includes hexagon bolts, screws with hexagonal heads, hex nuts, and hex flange nuts. The standard ensures a logical ratio between the underhead (or nut) bearing surface area and the tensile stress area of the screw thread, which is essential for maintaining appropriate compression rates and securing mechanical joints efficiently.
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