Projekta Nr.ISO 4042:2022
Nosaukums<p>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.</p> <p>It also specifies requirements and gives recommendations to minimize the risk of hydrogen embrittlement, see 4.4 and Annex B.</p> <p>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:</p> <p>—    with or without conversion coating,</p> <p>—    with or without sealant,</p> <p>—    with or without top coat,</p> <p>—    with or without lubricant (integral lubricant and/or subsequently added lubricant).</p> <p>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.</p> <p>The requirements of this document for electroplated fasteners take precedence over other documents  dealing with electroplating.</p> <p>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.</p> <p>NOTE       Electroplating is also applied to stainless steel fasteners, e.g. for the purpose of lubrication in order to avoid galling.</p> <p>Information for design and assembly of coated fasteners is given in Annex A.</p> <p>This document does not specify requirements for properties such as weldability or paintability.</p>
Reģistrācijas numurs (WIID)77913
Darbības sfēra<p>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.</p> <p>It also specifies requirements and gives recommendations to minimize the risk of hydrogen embrittlement, see 4.4 and Annex B.</p> <p>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:</p> <p>—    with or without conversion coating,</p> <p>—    with or without sealant,</p> <p>—    with or without top coat,</p> <p>—    with or without lubricant (integral lubricant and/or subsequently added lubricant).</p> <p>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.</p> <p>The requirements of this document for electroplated fasteners take precedence over other documents  dealing with electroplating.</p> <p>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.</p> <p>NOTE       Electroplating is also applied to stainless steel fasteners, e.g. for the purpose of lubrication in order to avoid galling.</p> <p>Information for design and assembly of coated fasteners is given in Annex A.</p> <p>This document does not specify requirements for properties such as weldability or paintability.</p>
StatussStandarts spēkā
ICS grupa21.060.01