ISO 273:1979
Fasteners — Clearance holes for bolts and screws
Fasteners — Clearance holes for bolts and screws
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 июня 1979 г.
- Издание:
- ISO IS 273 edition 1 version 1
- ICS:
- 21.060.01
Specifies diameters for general purpose applications; tabulates the hole diameters for fine, medium and coarse series for thread diameters from 1 mm up to 150 mm; holes for special applications should be selected on the basis of design requirements.
Abstract
Overview
ISO 273:1979 is an international standard published by the International Organization for Standardization (ISO) that specifies clearance hole diameters for bolts and screws used in general purpose applications. The standard covers hole sizes appropriate for a range of bolt thread diameters, from 1 mm up to 150 mm. It provides tabulated diameters for clearance holes corresponding to fine, medium, and coarse thread series to ensure proper fit and mechanical performance in fastening assemblies.
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