ISO 10642:2019
Fasteners — Hexagon socket countersunk head screws with reduced loadability

Standard No.
ISO 10642:2019
Release Date
2019
Published By
International Organization for Standardization (ISO)
Latest
ISO 10642:2019
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.

ISO 10642:2019 Referenced Document

  • ISO 10683 Fasteners - Non-electrolytically applied zinc flake coating systems
  • ISO 1891-4 Fasteners — Vocabulary — Part 4: Control, inspection, delivery, acceptance and quality
  • ISO 3269 Fasteners — Acceptance inspection
  • ISO 3506-1 Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part 1: Bolts, screws and studs with specified grades and property classes*2020-04-02 Update
  • ISO 4042 Threaded components — Electroplated coatings*2024-04-21 Update
  • ISO 4753 Fasteners - Ends of parts with external ISO metric thread
  • ISO 4759-1 Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C
  • ISO 6157-1 Fasteners surface discontinuities; part 1: bolts, screws and studs for general requirements
  • ISO 6157-3 Fasteners; surface discontinuities; part 3: bolts, screws and studs for special requirements
  • ISO 898-1 Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified property classes - Coarse thread and fine pitch thread; Technical Corrigendum 1
  • ISO 8992 Fasteners - General requirements for bolts, screws, studs and nuts
  • ISO 965-1 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data — Amendment 1*2021-09-29 Update

ISO 10642:2019 history

Fasteners — Hexagon socket countersunk head screws with reduced loadability



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