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ISO 68-2:2023

ISO general purpose screw threads - Basic and design profiles - Part 2: Inch screw threads
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ISO 68-2:2023

ISO general purpose screw threads - Basic and design profiles - Part 2: Inch screw threads

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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.

SDO ISO: International Organization for Standardization
Document Number ISO 68
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 1
Publish Date Document Id Type View
Not Available ISO 68-2:2023 Revision