NF ISO 68-2

NF ISO 68-2

October 2004
Standard Cancelled

ISO general purpose screw threads - Basic profile - Part 2 : inch screw threads

This part of ISO 68 specifies the basic profile for ISO inch screw threads.

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Main informations

Collections

National standards and national normative documents

Publication date

October 2004

Number of pages

8 p.

Reference

NF ISO 68-2

ICS Codes

21.040.20   Inch screw threads

Classification index

E03-006

Print number

1 - 23/09/2004

International kinship

ISO 68-2:1998
Sumary
ISO general purpose screw threads - Basic profile - Part 2 : inch screw threads

This part of ISO 68 specifies the basic profile for ISO inch screw threads.

Standard replaced by (1)
NF ISO 68-2
October 2023
Standard Current
ISO general purpose screw threads - Basic and design profiles - Part 2: Inch screw threads

<p class="MsoBodyText"><span lang="EN-GB">This document specifies the basic and design profiles for ISO inch screw threads (UN and UNR).</span></p> <p class="MsoBodyText"><span lang="EN-GB">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.</span></p> <p class="MsoBodyText"><span lang="EN-GB">This document is applicable to the inch fastening screw threads.</span></p>

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