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21 Mechanical systems and components for general use
New standards
EVS-EN ISO 4042:2022/A1:2026
Fasteners - Electroplated coating systems - Amendment 1 (ISO 4042:2022/Amd 1:2026)
Scope: Amendment to EVS-EN ISO 4042:2022
Base documents: ISO 4042:2022/Amd 1:2026; EN ISO 4042:2022/A1:2026
EVS-EN ISO 8742:2026
Fasteners - Grooved pins - One-third-length center grooves (ISO 8742:2026)
Scope: This document specifies the characteristics of grooved pins with one-third-length centre oval grooves (with closed ends), in steel and stainless steel, and with a nominal diameter from 1 mm to 25 mm.
These grooved pins are designed to fulfil the main following functions:

relative rotation of the assembled parts, and
positioning or guiding,

with an easy installation (due to its symmetrical shape) and a medium level of pull-out resistance (due to the elastic fit behaviour of the pin).
The general requirements (including functional principles for grooved pins and assembly) are specified in ISO 13669.
Base documents: ISO 8742:2026; EN ISO 8742:2026
ISO 8742:2026
Fasteners — Grooved pins — One-third-length center grooves
Scope: This document specifies the characteristics of grooved pins with one-third-length centre oval grooves (with closed ends), in steel and stainless steel, and with a nominal diameter from 1 mm to 25 mm.
These grooved pins are designed to fulfil the main following functions:

relative rotation of the assembled parts, and
positioning or guiding,

with an easy installation (due to its symmetrical shape) and a medium level of pull-out resistance (due to the elastic fit behaviour of the pin).
The general requirements (including functional principles for grooved pins and assembly) are specified in ISO 13669.
Base documents:
Replaces: ISO 8742:1997
ISO 4042:2022/Amd 1:2026
Fasteners — Electroplated coating systems — Amendment 1
Scope: Amendment to ISO 4042:2022
Base documents:
EVS-EN ISO 4042:2022+A1:2026
Fasteners - Electroplated coating systems (ISO 4042:2022 + ISO 4042:2022/Amd 1:2026)
Scope: This document specifies requirements for steel fasteners with electroplated coatings and coating systems. The requirements related to dimensional properties also apply to fasteners made of copper or copper alloys.
It also specifies requirements and gives recommendations to minimize the risk of hydrogen embrittlement, see 4.4 and Annex B.
It mainly applies to fasteners with zinc and zinc alloy coating systems (zinc, zinc-nickel, zinc-iron) and cadmium, primarily intended for corrosion protection and other functional properties:
—  with or without conversion coating,
—  with or without sealant,
—  with or without top coat,
—  with or without lubricant (integral lubricant and/or subsequently added lubricant).
Specifications for other electroplated coatings and coating systems (tin, tin-zinc, copper-tin, copper-silver, copper, silver, copper-zinc, nickel, nickel-chromium, copper-nickel, copper-nickel-chromium) are included in this document only for dimensional requirements related to fasteners with ISO metric threads.
The requirements of this document for electroplated fasteners take precedence over other documents  dealing with electroplating.
This document applies to steel bolts, screws, studs and nuts with ISO metric thread, to other threaded fasteners and to non-threaded fasteners such as washers, pins, clips and rivets.
NOTE  Electroplating is also applied to stainless steel fasteners, e.g. for the purpose of lubrication in order to avoid galling.
Information for design and assembly of coated fasteners is given in Annex A.
This document does not specify requirements for properties such as weldability or paintability.
Base documents: ISO 4042:2022; EN ISO 4042:2022; ISO 4042:2022/Amd 1:2026; EN ISO 4042:2022/A1:2026
Replaced standards
EVS-EN ISO 8742:1999
Grooved pins - One-third-length centre grooved
Scope: No scope available.
Base documents: ISO 8742:1997; EN ISO 8742:1997
ISO 8742:1997
Grooved pins -- One-third-length centre grooved
Scope:
Base documents:
Replaced: ISO 8742:2026
Drafts