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Norm

ISO 4042:2022

Issue date: 2022 06 03

Fasteners — Electroplated coating systems

This document specifies requirements for steel fasteners with electroplated coatings and coating systems. The requirements related to dimensional properties also apply to...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 57 Pages
Language:
English

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.

ISO 4042:2022
2022 06 03
Fasteners — Electroplated coating systems
Norm
ISO 4042:2018
2018 08 13
Fasteners — Electroplated coating systems
Norm
ISO 4042:1999
1999 07 01
Fasteners — Electroplated coatings
Norm
ISO 4042:1989
1989 12 21
Threaded components — Electroplated coatings
Norm
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