SIST EN 4072:2016

Aerospace series - Screws, 100° countersunk normal head, offset cruciform recess, close tolerance shank, short thread in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425 °C

This standard specifies the characteristics of screws, 100° countersunk normal head, offset cruciform recess, close tolerance shank, short thread, in titanium alloy, aluminium IVD coated.
Classification: 1 100 MPa 1) / 425 °C 2).

Luft- und Raumfahrt - 100° Senkschrauben mit Flügelkreuzschlitz, kurzes Gewinde, aus Titanlegierung, Aluminium IVD beschichtet - Klasse: 1 100 Mpa (bei Raumtemperatur) / 425 °C

Diese Norm legt die Eigenschaften von 100 °-Senkschrauben mit Flügelkreuzschlitz und kurzem Gewinde, aus Titanlegierung, mit ionaufgedampfter Aluminiumschicht, fest.
Klasse: 1 000 MPa  ) / 425 °C  )

Série aérospatiale - Vis à tête fraisée 100° normale, à empreinte cruciforme déportée, fût à tolérance serrée, filetage court, en alliage de titane, revêtues aluminium IVD - Classification: 1 100 MPa (à température ambiente) /425 °C

La présente norme spécifie les caractéristiques des vis à tête fraisée 100° normale, à empreinte cruciforme déportée, fût normal à tolérance serrée, filetage court, en alliage de titane, revêtues d’aluminium IVD.
Classification : 1 100 MPa 1) / 425 °C 2)

Aeronavtika - Vijaki, 100° ugreznjena glava, križna zareza, polno steblo, ozka toleranca, kratek navoj, iz titanove zlitine, prevlečene z aluminijem IVD - Klasifikacija: 1100 MPa (pri temperaturi okolice) / 425 °C

Ta standard določa značilnosti vijakov: 100° ugreznjena glava, križna zareza, polno steblo, ozka toleranca, kratek navoj, iz titanove zlitine, prevlečene z aluminijem IVD. Klasifikacija: 1100 MPa1)/425 °C2).

General Information

• Status: Published
• Publication Date: 10-Apr-2016
• ICS: 49.025.20 - Aluminium
• ICS: 49.025.30 - Titanium
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 31-Mar-2016
• Due Date: 05-Jun-2016
• Completion Date: 11-Apr-2016
• Ref Project: EN 4072:2016 - Aerospace series - Screws, 100° countersunk normal head, offset cruciform recess, close tolerance shank, short thread in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425 °C

Relations

• Replaces: SIST EN 4072:2009 - Aerospace series - Screws, 100° countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, aluminium IVD coated - Classification: 1100 MPa (at ambient temperature)/425 °C
• Effective Date: 01-May-2016
• Corrected By: SIST EN 4072:2016/AC:2017 - Aerospace series - Screws, 100° countersunk normal head, offset cruciform recess, close tolerance shank, short thread in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425 °C
• Effective Date: 12-Apr-2017
• Corrected By: SIST EN 4072:2016/AC:2017 - Aerospace series - Screws, 100° countersunk normal head, offset cruciform recess, close tolerance shank, short thread in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425 °C
• Effective Date: 21-Sep-2016

Overview

EN 4072:2016 is a CEN aerospace standard that specifies the characteristics of 100° countersunk screws with an offset cruciform recess, close-tolerance shank and short thread, manufactured from titanium alloy and finished with an aluminium IVD (ion vapor deposition) coating. The screws are classified for material minimum tensile strength 1 100 MPa (ambient) and maximum service temperature 425 °C (surface‑treatment dependent). This standard supersedes EN 4072:2009 and aligns dimensions and tolerances with established aerospace thread and drive standards.

Key topics and requirements

• Configuration and dimensions: Geometry, head form and dimensional series reference ISO 5856 and ISO 5855‑2; dimensions are expressed in millimetres and apply after surface treatment.
• Materials and strength: Titanium alloy in strength class 1 100 MPa (TR 3775 reference).
• Surface treatment: Aluminium IVD coating per MIL‑DTL‑83488 (type II, class 3, 4–12 µm) or EN 6118 alternative. After deposition, mechanical blasting and chromate conversion coating are required within 24 hours; optional lubrication with cethylic alcohol (code E).
• Tolerances and form: Tolerances of form and position per ISO 7913. Break sharp edges to 0.1–0.4 µm.
• Drive and recess: Offset cruciform drives to ISO 14275 / ISO 14276; the standard includes specified recess removal torque values (e.g., recess code 3 = 1.15 N·m; code 12 = 119 N·m).
• Marking and designation: Marking rules reference EN 2424; designation format defined (standard number, diameter and length codes, drive and lubrication codes).
• Quality and approval: Manufacturer approval and part qualification per EN 9100 and EN 9133. Oversized bolt options per EN 4016.

Applications and users

• Aerospace design engineers specifying countersunk titanium fasteners for airframe and engine assemblies where high strength-to-weight, corrosion resistance and specified thermal stability are required.
• Fastener manufacturers and suppliers producing IVD‑coated titanium screws to aerospace procurement specifications.
• Quality assurance, procurement and maintenance teams in aviation, space and defence organisations who require traceable marking, approved manufacturer status and reproducible mechanical/drive performance.
• Typical uses: structural attachments, flush-mounted assemblies and applications requiring a countersunk head with corrosion‑resistant aluminium coating.

Related standards (select)

• ISO 5856, ISO 5855‑2 (threads/dimensions)
• ISO 7913, ISO 9152 (tolerances, testing)
• ISO 14275 / ISO 14276 (offset cruciform drives)
• EN 2424 (marking), EN 4016 (oversized bolts), EN 6118 (aluminium protection)
• MIL‑DTL‑83488 (aluminium coating spec)
• EN 9100 / EN 9133 (quality and qualification)

Keywords: EN 4072:2016, aerospace screws, 100° countersunk, titanium alloy screw, aluminium IVD coated, offset cruciform recess, MJ threads, close tolerance shank, aerospace fasteners.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - 100° Senkschrauben mit Flügelkreuzschlitz, kurzes Gewinde, aus Titanlegierung, Aluminium IVD beschichtet - Klasse: 1 100 Mpa (bei Raumtemperatur) / 425 °CSérie aérospatiale - Vis à tête fraisée 100° normale, à empreinte cruciforme déportée, fût à tolérance serrée, filetage court, en alliage de titane, revêtues aluminium IVD - Classification: 1 100 MPa (à température ambiente) /425 °CAerospace series - Screws, 100° countersunk normal head, offset cruciform recess, close tolerance shank, short thread in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425 °C49.030.20Sorniki, vijaki, stebelni vijakiBolts, screws, studs49.025.30TitanTitanium49.025.20AluminijAluminiumICS:Ta slovenski standard je istoveten z:EN 4072:2016SIST EN 4072:2016en,fr,de01-maj-2016SIST EN 4072:2016SLOVENSKI
STANDARDSIST EN 4072:20091DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4072
March
t r s x ICS
v {ä r u rä t r Supersedes EN
v r y tã t r r {English Version
Aerospace series æ Screwsá
s r r ¹ countersunk normal headá offset cruciform recessá close tolerance shanká short thread in titanium alloyá aluminium IVD coated æ Classificationã
s Série aérospatiale æ Vis à tête fraisée
s r r ¹ normaleá à empreinte cruciforme déportéeá fût à tolérance serréeá filetage courtá en alliage de titaneá revêtues aluminium
Luftæ und Raumfahrt æ
s r r ¹ Senkschrauben mit Flügelkreuzschlitzá kurzes Gewindeá aus Titanlegierungá Aluminium IVD beschichtet æ Klasseã
s 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 r y tã t r s x ESIST EN 4072:2016

Page European Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Required characteristics . 5 4 Designation. 8 5 Marking . 8 6 Technical specification . 9 7 Oversized bolts . 9 Annex A (informative)
Standard evolution form . 10
EN 2424, Aerospace series — Marking of aerospace products EN 4016, Aerospace series — Oversized bolts EN 6118, Aerospace series — Process specification — Aluminium base protection for fasteners
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