EN 4163:2016

Aerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C

This standardhis European Standard specifies the characteristics of screws, 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated.
Classification: 1 100 MPa / 235 °C.

Luft- und Raumfahrt - 100° Senkschrauben mit Flügelkreuzschlitz, langes Gewinde, aus legiertem Stahl, verkadmet - Klasse: 1 100 MPa (bei Raumtemperatur) / 235 °C

Diese Europäische Norm legt die Eigenschaften von 100° Senkschrauben mit Flügelkreuzschlitz und langem Gewinde aus legiertem Stahl, verkadmet, fest.
Klasse: 1 100 MPa )/235 °C ).

Série aérospatiale - Vis à tête fraisée 100° normale; à empreinte cruciforme déportée, tige normale à tolérance large, filetage long, en acier allié, cadmiées - 1100 MPa (à température ambiante) / 235°C

Cette Norme Européenne spécifie les caractéristiques de vis à tête fraisée 100° normale, à empreinte cruciforme déportées, tige normale à tolérance large, filetage long, en acier allié, cadmiées.
Classification : 1 100 MPa  ) / 235 °C  ).

Aeronavtika - Vijaki, 100° ugrezna glava, križna zareza, polno steblo, ozka toleranca, dolg navoj, iz legiranega jekla, prevlečeni s kadmijem - Klasifikacija: 1100 MPa (pri temperaturi okolice) / 235 °C

Ta evropski standard določa značilnosti vijakov: 100° ugreznjena glava, križna zareza, široka toleranca, dolg navoj, iz legiranega jekla, prevlečenega s kadmijem. Klasifikacija: 1100 MPa/235 °C.

General Information

• Status: Published
• Publication Date: 22-Mar-2016
• Withdrawal Date: 29-Sep-2016
• ICS: 49.030.10 - Screw threads
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 3 - Mechanical
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 23-Mar-2016
• Completion Date: 23-Mar-2016
• Ref Project: SIST EN 4163:2016 - Aerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C

Relations

• Replaces: EN 4163:2009 - Aerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - 1 100 MPa (at ambient temperature) / 235 °C
• Effective Date: 30-Mar-2016
• Revised: FprEN 4163 - Aerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C
• Effective Date: 30-Oct-2024

Overview

EN 4163:2016 is a CEN (ASD‑STAN) aerospace standard that specifies the characteristics, designation and technical requirements for a family of fasteners: 100° countersunk screws with an offset cruciform recess, coarse‑tolerance normal shank, long thread, made from alloy steel and cadmium plated. The standard covers dimensions, tolerances, material classification and surface treatment, and gives the product classification 1 100 MPa (minimum tensile strength at ambient temperature) / 235 °C (maximum service temperature related to surface treatment).

Key topics and requirements

• Product scope: Screws with 100° countersunk normal head, offset cruciform drive (ribbed), coarse tolerance shank and long thread; dimensions and mass given in millimetres and specified after surface treatment.
• Material & strength: Alloy steel per referenced material standards with classification 1 100 MPa (minimum tensile strength).
• Surface treatment: Cadmium plating in accordance with EN 2133 (specified thickness range on load‑bearing surfaces; continuous plating elsewhere). Black colour option available (code B).
• Temperature classification: Maximum allowable temperature 235 °C (surface‑treatment limited) and definition of classification terms are provided.
• Dimensional & form tolerances: Thread and length rules reference ISO 3353‑1, ISO 5855‑2 and ISO 7913 for lead/runout threads and tolerances of form and position.
• Designation and marking: Standardized designation format (EN4163–diameter code–length code–drive–colour option) and marking per EN 2424 (style B).
• Quality & approvals: Manufacturer approval and quality system requirements reference EN 9100 and EN 9133 (qualification procedure for aerospace standard parts).

Applications and who uses it

• Aerospace OEMs and suppliers: Design engineers specifying standardized countersunk screws for airframe and interior assemblies where flush fastening and controlled strength are required.
• Fastener manufacturers: For production, qualification and marking of cadmium‑plated alloy‑steel screws to meet aerospace procurement requirements.
• Procurement and quality teams: To ensure purchased fasteners conform to aerospace acceptance criteria, material classification and traceability.
• Maintenance, repair & overhaul (MRO): For replacement parts and repair kits that must match original specifications and service temperature limits.
• Typical applications include structural flush‑mounted joints, interior panels and assemblies where a 100° countersunk head and high tensile strength are specified.

Related standards

Key normative references within EN 4163:2016 include:

• EN 2133 (cadmium plating requirements)
• EN 2137, EN 2442, TR 3775 (steel/alloy material specifications)
• ISO 3353‑1, ISO 5855‑2, ISO 7913 (threads and tolerances)
• ISO 14275 / ISO 14276 (offset cruciform drives)
• EN 2424 (marking), EN 9100 and EN 9133 (quality and qualification)

EN 4163:2016 helps ensure compatibility, interchangeability and aerospace compliance when selecting or producing 100° countersunk, offset cruciform, cadmium‑plated alloy‑steel screws.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - 100° Senkschrauben mit Flügelkreuzschlitz, langes Gewinde, aus legiertem Stahl, verkadmet - Klasse: 1 100 MPa (bei Raumtemperatur) / 235 °CSérie aérospatiale - Vis à tête fraisée 100° normale, à empreinte cruciforme déportée, tige normale à tolérance large, filetage long, en acier allié, cadmiées - Classification: 1 100 MPa (à température ambiante) / 235 °CAerospace series - Screws 100° countersunk normal head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated - Classification: 1 100 MPa (at ambient temperature) / 235 °C49.030.20Sorniki, vijaki, stebelni vijakiBolts, screws, studs49.025.10JeklaSteelsICS:Ta slovenski standard je istoveten z:EN 4163:2016SIST EN 4163:2016en,fr,de01-maj-2016SIST EN 4163:2016SLOVENSKI
STANDARDSIST EN 4163:20101DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4163
March
t r s x ICS
v {ä r u rä t r Supersedes EN
v s x uã t r r {English Version
Aerospace series æ Screws
s r r ¹ countersunk normal headá offset cruciform recessá coarse tolerance normal shanká long threadá in alloy steelá cadmium plated æ Classificationã Série aérospatiale æ Vis à tête fraisée
s r r ¹ normaleá à empreinte cruciforme déportéeá tige normale à tolérance largeá filetage longá en acier alliéá cadmiées æ
t u w
¹C
Luftæ und Raumfahrt æ
s r r ¹ Senkschrauben mit Flügelkreuzschlitzá langes Gewindeá aus legiertem This European Standard was approved by CEN on
t y September
t r s wä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
v s x uã t r s x ESIST EN 4163:2016

Page European Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Required characteristics . 5 4 Designation. 8 5 Marking . 8 6 Technical specification . 8 Annex A (informative)
Standard evolution form . 9
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