SIST EN 6081:2023

Aerospace series - Rivet, universal head, close tolerance - Inch series

This document specifies the dimensions, tolerances and mass of rivets with universal head, close tolerance, inch series, for aerospace application.

Luft- und Raumfahrt - Vollniet, Universalkopf, enge Toleranz - Inch-Reihe

Dieses Dokument legt die Maße, Grenzabmaße und Masse von Vollnieten mit Universalkopf, enger Toleranz, Inch Reihe, für die Anwendung in der Luft  und Raumfahrt fest.

Série aérospatiale - Rivets de précision, tête universelle - Série en inches

Le présent document spécifie les dimensions, les tolérances et la masse des rivets de précision à tête universelle, série en inches, pour les applications aérospatiales.

Aeronavtika - Kovice, univerzalna glava, ozka toleranca - Palčne mere

Ta dokument določa dimenzije, tolerance in maso kovic z univerzalno glavo, ozka toleranca, colska izvedba za uporabo v aeronavtiki.

General Information

• Status: Published
• Public Enquiry End Date: 16-Jan-2019
• Publication Date: 22-Jan-2023
• ICS: 21.060.40 - Rivets
• ICS: 49.030.60 - Rivets
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 04-Jan-2023
• Due Date: 11-Mar-2023
• Completion Date: 23-Jan-2023
• Ref Project: EN 6081:2022 - Aerospace series - Rivet, universal head, close tolerance - Inch series

Relations

• Replaces: SIST EN 6081:2016 - Aerospace series - Rivet, universal head, close tolerance - Inch series
• Effective Date: 28-Dec-2022
• Revised: SIST EN 6081:2016 - Aerospace series - Rivet, universal head, close tolerance - Inch series
• Effective Date: 28-Feb-2018

Overview

EN 6081:2022 - Aerospace series - Rivet, universal head, close tolerance - Inch series - is a CEN (ASD‑STAN) standard that specifies the configuration, dimensions, tolerances and mass for universal‑head, close‑tolerance rivets in the inch series for aerospace applications. Although called an inch series, dimensions and tolerances are expressed in millimetres and the standard provides detailed tables and figures for selection, including oversize rivet options and mass conversion factors.

Key topics and technical requirements

• Scope and configuration: Defines the universal head geometry and shank features (see Figure 1) and permissible shank diameter increases near the head.
• Dimensions, tolerances and masses: Detailed Tables list nominal diameters, head and shank dimensions, length codes and mass per 1 000 parts. Oversize rivets and length increment rules (1/16 in steps and optional 1/32 in increments) are covered.
• Materials and surface treatments: Specifies allowable materials and finishes, including aluminium alloys (e.g., 1050A‑H14, 2117‑T42, 2017A‑T42, 5056A‑H32, 7050‑T73) and titanium alloy 44.5 Cb. Surface treatments reference MIL and ISO processes (e.g., MIL‑A‑8625 anodizing, MIL‑DTL‑5541 chromate, ISO 8080 for titanium).
• Designation and marking: Head marking conventions identify material and manufacturer (manufacturer ID required for diameter code 4 and larger). Oversize rivets are identified by an indented triangular mark on the shank end.
• Technical specifications: Aluminium rivets reference prEN 6104; titanium rivets reference NASM 5674 (with specific finish exceptions).
• Quality management: Manufacturers must be approved aerospace production organizations and maintain an aerospace quality system (e.g., EN 9100 or equivalent). Qualification per EN 9133 (or equivalent) is required unless otherwise agreed.

Applications and users

EN 6081 is intended for use where high‑precision, close‑tolerance universal‑head rivets are required in aerospace structures and assemblies. Typical users:

• Aerospace OEMs and Tier‑1 suppliers specifying fasteners for airframe assemblies
• Fastener manufacturers producing rivets to aerospace standards
• MRO organizations and procurement teams verifying part conformity
• Design and stress engineers selecting fasteners for structural joints, skin-to-frame attachments, and fittings

Practical benefits include consistent interchangeability, traceable material/finish identification, and clear production/inspection criteria to support structural integrity and regulatory compliance.

Related standards

• EN 2114 / EN 2115 / EN 2116 / EN 2117 / EN 3115 (aluminium wire specifications)
• prEN 6104 (solid aluminium rivets technical specification)
• NASM 5674, MIL‑A‑8625, MIL‑DTL‑5541, ISO 8080 (finish/coating references)
• EN 6069, EN 6080, EN 6101 (other rivet head forms)
• EN 9100 / EN 9133 (quality and qualification for aerospace products)

Keywords: EN 6081, rivet, universal head, close tolerance, inch series, aerospace rivets, dimensions, tolerances, aluminium rivets, titanium rivets, surface treatment, EN 9100.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2023
Nadomešča:
SIST EN 6081:2016
Aeronavtika - Kovice, univerzalna glava, ozka toleranca - Palčne mere
Aerospace series - Rivet, universal head, close tolerance - Inch series
Luft- und Raumfahrt - Vollniet, Universalkopf, enge Toleranz - Inch-Reihe
Série aérospatiale - Rivets de précision, tête universelle - Série en inches
Ta slovenski standard je istoveten z: EN 6081:2022
ICS:
21.060.40 Kovice Rivets
49.030.60 Kovice Rivets
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 6081
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 49.030.60 Supersedes EN 6081:2016
English Version
Aerospace series - Rivet, universal head, close tolerance -
Inch series
Série aérospatiale - Rivets de précision, tête universelle Luft- und Raumfahrt - Vollniet, Universalkopf, enge
- Série en inches Toleranz - Inch-Reihe
This European Standard was approved by CEN on 30 May 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 6081:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Requirements . 6
4.1 Configuration, dimensions, tolerances and masses . 6
4.2 Material and surface treatment . 8
5 Designation . 11
6 Marking . 11
6.1 Material identification . 11
6.2 Manufacturer’s identification . 12
6.3 Identification of oversize rivets . 12
7 Technical specification . 12
7.1 Aluminium alloy rivets . 12
7.2 Titanium alloy rivets . 12
8 Quality management system. 12
Annex A (informative) Record of revision . 13
Bibliography. 14

European foreword
This document (EN 6081:2022) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 6081:2016.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
Introduction
This document is published at Airbus agreed version prEN 6081 edition P3. Former issue 1 and 2 and
drafts may exist of Airbus development only but without any ASD–STAN official publication. In
consequence configuration management discrepancies with these unofficial documents are under
Airbus responsibility.
1 Scope
This document specifies the dimensions, tolerances and mass of rivets with universal head, close
tolerance, inch series, for aerospace application.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2114, Aerospace series — Aluminium 1050A-H14 — Wire for solid rivets — D ≤ 10 mm
EN 2115, Aerospace series — Aluminium alloy 2117-T42 — Wire for solid rivets — D ≤ 10 mm
EN 2116, Aerospace series — Aluminium alloy 2017A-T42 — Wire for solid rivets — D ≤ 10 mm
EN 2117, Aerospace series — Aluminium alloy AL-P5056A (5056A)-H32 — Wire for solid rivets —
D ≤ 10 mm
EN 2424, Aerospace series — Marking of aerospace products
EN 3115, Aerospace series — Aluminium alloy 7050-T73 — Wire for solid rivets — D ≤ 10 mm
prEN 6104, Aerospace series — Rivets, solid, in aluminium or aluminium alloy — Inch series — Technical
specification
prEN 6118, Aerospace series — Process specification — Aluminium base protection for fasteners
ISO 8080, Aerospace — Anodic treatment of titanium and titanium alloys — Sulfuric acid process
MIL-A-8625, Anodic Coatings for Aluminum and Aluminum Alloys
MIL-DTL-5541, Chemical Conversion Coatings on Aluminium and Aluminium Alloys
NASM5674, Rivets, Structural, Aluminium Alloy, Titanium Columbium Alloy, General Specification for
SAE AMS 4982, Titanium Alloy Wire 44.5 Cb

Published as ASD-STAN Prestandard at the date of publication of this standard by AeroSpace and Defence
In
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