SIST EN ISO 4042:2022/A1:2026

Fasteners - Electroplated coating systems - Amendment 1 (ISO 4042:2022/Amd 1:2026)

Verbindungselemente - Galvanisch aufgebrachte Überzugsysteme - Änderung 1 (ISO 4042:2022/Amd 1:2026)

Fixations - Systèmes de revêtements électrolytiques - Amendement 1 (ISO 4042:2022/Amd 1:2026)

Vezni elementi - Sistemi galvanskih prevlek veznih elementov - Dopolnilo A1 (ISO 4042:2022/Amd 1:2026)

General Information

• Status: Not Published
• Public Enquiry End Date: 30-Jul-2025
• ICS: 21.060.01 - Fasteners in general
• ICS: 25.220.40 - Metallic coatings
• Technical Committee: ISEL - Mechanical elements
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 17-Apr-2026
• Due Date: 22-Jun-2026
• Ref Project: EN ISO 4042:2022/A1:2026 - Fasteners - Electroplated coating systems - Amendment 1 (ISO 4042:2022/Amd 1:2026)

Relations

• Amends: SIST EN ISO 4042:2022 - Fasteners - Electroplated coating systems (ISO 4042:2022)
• Effective Date: 02-Apr-2025

Overview

SIST EN ISO 4042:2022/A1:2026 is an amendment to the internationally recognized ISO 4042:2022 standard, developed by CEN, that addresses electroplated coating systems for fasteners. This amendment introduces updated technical provisions, particularly focusing on zinc-nickel (ZnNi) coating systems, which are critical for providing corrosion protection in industrial, mechanical, and construction applications.

By establishing common requirements for electroplated coatings on fasteners, this standard ensures quality, performance, and compatibility in European and global markets. The document is relevant for manufacturers, users, and regulatory bodies involved with metallic fasteners and their surface treatments.

Key Topics

• Electroplated coating requirements: The amendment specifies criteria for a range of metallic coatings applied to fasteners, focusing on functional performance and surface protection.
• Zinc-nickel (ZnNi) passivation: An important revision in this amendment is the addition of transparent passivation as an alternative to iridescent (silver grey) passivation for ZnNi coatings. Transparent passivation can deliver an equivalent level of corrosion protection, even with reduced layer thickness.
• Neutral salt spray (NSS) test: The standard highlights the use of the NSS test for assessing the corrosion resistance of zinc-based electroplated coatings, supporting the quality assurance of finished fasteners.
• Technical footnotes: The amendment adds technical clarifications via footnotes in the relevant tables to guide users on permitted coating systems.

Applications

SIST EN ISO 4042:2022/A1:2026 is instrumental for a variety of sectors that depend on the durability and reliability of coated fasteners, including:

• Automotive industry: Ensuring corrosion resistance and extended service life for bolts, screws, and nuts in vehicles.
• Construction and civil engineering: Maintaining integrity of metallic fasteners in buildings, infrastructure, and steel structures.
• Machinery and equipment manufacturing: Improving operational reliability by minimizing corrosion-related failures.
• Aerospace and defense: Meeting stringent requirements for surface coatings to withstand harsh environments.

By aligning production and inspection practices with the standard, stakeholders ensure fasteners meet consistent quality benchmarks, enhance product longevity, and comply with applicable regulations and client specifications.

Related Standards

Users of SIST EN ISO 4042:2022/A1:2026 may also reference the following relevant standards:

• ISO 4042:2022: The base standard for electroplated coating systems for fasteners.
• EN ISO 10683: Specifies non-electrolytically applied zinc flake coatings on fasteners.
• ISO 9227: Provides methods for conducting salt spray tests to evaluate corrosion resistance.
• ISO 898 series: Relates to mechanical properties of fasteners.

These related standards complement EN ISO 4042 by providing additional guidance on testing, performance, and coating application for fasteners across various industries.

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By adopting SIST EN ISO 4042:2022/A1:2026, organizations benefit from improved durability and performance of coated fasteners, simplified international trade, and enhanced customer confidence in metallic joint assemblies. This amendment is a key resource for those aiming to implement state-of-the-art fastener coating technologies aligned with the latest international best practices.

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 4042:2022/oprA1:2025
01-julij-2025
Vezni elementi - Sistemi galvanskih prevlek veznih elementov - Dopolnilo A1 (ISO
4042:2022/DAM 1:2025)
Fasteners - Electroplated coating systems - Amendment 1 (ISO 4042:2022/DAM 1:2025)
Verbindungselemente - Galvanisch aufgebrachte Überzugsysteme - Änderung 1 (ISO
4042:2022/DAM 1:2025)
Fixations - Systèmes de revêtements électrolytiques - Amendement 1 (ISO
4042:2022/DAM 1:2025)
Ta slovenski standard je istoveten z: EN ISO 4042:2022/prA1
ICS:
21.060.01 Vezni elementi na splošno Fasteners in general
25.220.40 Kovinske prevleke Metallic coatings
SIST EN ISO 4042:2022/oprA1:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN ISO 4042:2022/oprA1:2025

SIST EN ISO 4042:2022/oprA1:2025
DRAFT
Amendment
ISO 4042:2022/
DAM 1
ISO/TC 2/SC 14
Fasteners — Electroplated coating
Secretariat: DIN
systems
Voting begins on:
AMENDMENT 1
2025-06-02
Fixations — Systèmes de revêtements électrolytiques Voting terminates on:
2025-08-25
AMENDEMENT 1
ICS: 21.060.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
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This document is circulated as received from the committee secretariat.
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Reference number
ISO 4042:2022/DAM 1:2025(en)
SIST EN ISO 4042:2022/oprA1:2025
DRAFT
ISO 4042:2022/DAM 1:2025(en)
Amendment
ISO 4042:2022/
DAM 1
ISO/TC 2/SC 14
Fasteners — Electroplated
Secretariat: DIN
coating systems
Voting begins on:
AMENDMENT 1
Fixations — Systèmes de revêtements électrolytiques Voting terminates on:
AMENDEMENT 1
ICS: 21.060.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
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