Avdel® | Material Standards

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Material and Surface Finish Standards

Material Standards

The table below explains the abbreviations we use to denote the basic requirements for steels, aluminium alloys and copper alloys used in the manufacture of Avdel® fasteners. Each standard contains a list of grades available. The grade used for each range of Avdel® fastener is included in the general material and standard description at the top of our technical data sheets. Where the material used appears in more than one of the standards listed, as a direct equivalent, each grade is included in the description.

The inclusion of these standards and grade designations provides recognition of the material used in Europe, USA and worldwide. Using these designations it is also possible for customers to identify equivalent grades where they appear in their own national standards by reference to "Stahlschlüssel" or similar material databases.

Standard	Description	Country of Origin
BS 1473	British Standard for Aluminium Alloy Wire for Rivet, Bolt and Screw stock	UK
BS EN 573-3	European standard for Aluminium and Aluminium Alloys-Chemical Composition and Form of Wrought Products Part 3: Chemical Composition Europe	UK
BS 970	British Standard for Wrought Steels	UK
Note	BS 970 has been superseded by BS EN 10083, 10084, 10085, 10087, 10088, 10089, 10095, 10250, 10277, 10278
BS EN 10263	British Standard for Steel Wire for Cold Forged Fasteners	UK
	British Standard for Stainless Steel Wire for Cold Forged Fasteners	UK
BS EN 12166	British Standard for Copper and Copper Alloy Wires	UK
AA	Aluminium Association	USA
AISI	American Iron and Steel Institute	USA
SAE	Society for Automotive Engineers	USA
DIN 1654	Deutches Institut für Normung - Steels	Germany
DIN 1725	Deutches Institut für Normung - Aluminium Alloys	Germany
DIN 1787	Deutches Institut für Normung - Copper Products	Germany
DIN 17111	Deutches Institut für Normung - Low Carbon Steels	Germany
DIN 17660	Deutches Institut für Normung - Copper Alloys	Germany
Werkstoff	Numbering System for Materials	Germany

Suface Finish Standards

The table below explains the abbreviations we use to denote the surface finish standards used in the manufacture of Avdel® fasteners, which provide recognition in the UK and throughout Europe. The general surface finish standard descriptions appear at the top of our technical data sheets along with the material standards detailed above.

The term "yellow passivated" in relation to zinc or zinc/nickel plated fasteners refers to a supplementary treatment based on chromates to enhance the corrosion resistance.

The absence of any supplementary treatment term for zinc plated fasteners indicates that they are supplied either with clear or no passivation.

For fasteners that are not coated or are supplied polished, for example some aluminium alloy fasteners, the terms natural and polished are used respectively.

The below table is an example listing for some of the standards available.

Standard	Description	Country of Origin
BS 1615	British Standard for specifying anodic oxidation coatings on aluminium and its alloys	UK
BS 3382	British Standard for electroplated coatings on threaded components	UK
BS EN 12329	European Standard for Zinc Plating and supplementary treatment. (Supersedes British Standard BS 1706)	UK
TL244	Volkswagen specification for zinc/nickel plating	Germany
QQ-P-35	Passivation treatment of Stainless Steels	USA