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ISO/DIS 10642

Fasteners — Hexagon socket countersunk head screws with reduced loadability

General information

40.20     Jul 18, 2025

ISO

ISO/TC 2/SC 11

International Standard

21.060.10  

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Scope

This document specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M20, and with product grade A.
NOTE 1 Other dimensional options are given in ISO 888, ISO 965-1 and ISO 4753.
NOTE 2 The reduced loadability (related to the countersunk head dimensions in combination with penetration of the hexagon socket specified in this document) implies a limitation of ultimate tensile load; see Table 5.
NOTE 3 Particular attention is needed to ensure alignment of the countersunk head with the bearing surface of the countersink in the assembly.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 10642:2019

NOW

PROJECT
ISO/DIS 10642
40.20 DIS ballot initiated: 12 weeks
Jul 18, 2025

National adoptions

naSRPS EN ISO 10642:2024  
ISS

Fasteners - Hexagon socket countersunk head screws with reduced loadability (ISO/DIS 10642:2025)

40.20   DIS ballot initiated: 12 weeks

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