Standard

ISO 68-2:2023

Oct 2023 Published

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Abstract

This document specifies the basic and design profiles for ISO inch screw threads (UN and UNR). UN applies to both internal and external threads. UNR only applies to external threads. A flat or rounded root contour, due to the threading process, is specified for UN threads, while only a defined rounded root contour is specified for UNR external threads. This document is applicable to the inch fastening screw threads.

Document information

Standard from ISO
Published: 5 October 2023
Edition: 2
Version: 1
Document type: IS
ISBN:

ICS 21.040.20
ISO TC ISO/TC 1

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Revises: ISO 68-2:1998

ISO 68-2:2023

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ISO 68-2:2023

ISO 68-2:2023

ISO 68-2:2023

ISO 68-2:1998

Abstract

Document information

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Access to standards for the entire organization

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Version history Related corrigendum and amendments (0)

Version history History (4)

ISO 68-2:2023

ISO 68-2:2023

ISO 68-2:2023

ISO 68-2:1998

Abstract

Document information

Product Relations

Product life cycle