EN 3308:1996
(Main)Aerospace series - Screws, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature)/315°C
Aerospace series - Screws, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature)/315°C
This standard specifies the characteristics of bolts, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS2 lubricated. Classification: 1 100 MPa / 315 °C
Luft- und Raumfahrt - Sechskantschrauben, Gewinde annähernd bis Kopf, aus Titanlegierung, anodisiert, MoS2-geschmiert - Klasse: 1 100 MPa (bei Raumtemperatur)/315°C
Diese Norm legt die Eigenschaften von Sechskantschrauben, mit Gewinde annähernd bis Kopf, aus Titanlegierung, anodisiert, MoS2-geschmiert, fest. Klasse: 1 100 MPa / 315 °C
Série aérospatiale - Vis à tête hexagonale normale, filetées jusqu'à proximité de la tête, en alliage de titane, anodisées, lubrifiées MoS2 - Classification: 1 100 MPa (à température ambiante)/315°C
La présente norme spécifie les caractéristiques des vis à tête hexagonale normale, filetées jusqu'à proximité de la tête, en alliage de titane, anodisées, lubrifiées MoS2. Classification: 1 100 MPa / 315 °C
Aerospace series - Screws, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature)/315°C
General Information
- Status
- Published
- Publication Date
- 20-Aug-1996
- Withdrawal Date
- 27-Feb-1997
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3 - Mechanical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 31-May-2017
- Completion Date
- 21-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
Overview
EN 3308:1996 is a European standard developed by CEN that defines specifications for aerospace-grade screws. Specifically, it covers normal hexagonal head screws made from titanium alloy, which are anodized and MoS2 lubricated. These screws are classified for use where mechanical strength requirements of 1100 MPa at ambient temperature and operational capacity up to 315°C are critical. The document ensures uniformity and reliability in screw performance for aerospace applications, emphasizing durability and corrosion resistance.
Key Topics
- Material Specification: Screws are manufactured using high-strength titanium alloy known for its exceptional strength-to-weight ratio, corrosion resistance, and thermal stability.
- Threading: The screws are threaded to the head, allowing for greater grip and fastening efficiency in aeronautical assemblies.
- Surface Treatment: Anodization improves corrosion resistance and surface hardness, extending the component's lifecycle.
- Lubrication: A molybdenum disulfide (MoS2) lubricant coating reduces friction during installation and operation, minimizing galling and seizing risks.
- Performance Classification: These screws are rated at 1100 MPa tensile strength at ambient temperature with capability to perform reliably up to temperatures of 315°C, suitable for demanding aerospace environments.
Applications
EN 3308:1996 screws are critical components in aerospace manufacturing and maintenance, particularly in:
- Aircraft Assembly: Securing structural and engine components where high strength and temperature endurance are essential.
- Spacecraft: Use in spacecraft hardware requiring corrosion-resistant, lightweight fasteners capable of withstanding harsh atmospheric and thermal conditions.
- High-Performance Engines: Fastening elements in jet engines and auxiliary power units exposed to elevated temperatures and mechanical stresses.
- Aerospace Maintenance: Standardizing replacement parts ensuring compatibility and safety in maintenance, repair, and overhaul activities.
This standard ensures that aerospace manufacturers and suppliers adhere to consistent quality and performance criteria, enhancing safety, reliability, and operational efficiency in critical aerospace systems.
Related Standards
To complement the requirements of EN 3308:1996 and support aerospace fastener selection and application, the following standards are commonly referenced:
- EN 2908: General mechanical properties for metric screws in aerospace applications.
- EN ISO 4762: Covers hexagon socket head cap screws for high precision aerospace assemblies.
- EN 573-3: Defines titanium and titanium alloy chemical composition and mechanical properties.
- AS 5202: Aerospace standard for corrosion-resistant coatings and lubrications on fasteners.
- ISO 6157: Standards for surface treatment and coatings relevant to aerospace fasteners.
Adhering to EN 3308:1996 and associated standards ensures aerospace fasteners meet stringent safety, durability, and performance criteria demanded by the industry.
Keywords: EN 3308:1996, aerospace screws, titanium alloy screws, anodized screws, MoS2 lubricated fasteners, hexagonal head screws, aerospace fastener standards, high strength aerospace bolts, aerospace durability, corrosion-resistant screws
Get Certified
Connect with accredited certification bodies for this standard
National Aerospace and Defense Contractors Accreditation Program (NADCAP)
Global cooperative program for special process quality in aerospace.
NSF-ISR
NSF International Strategic Registrations.
Orion Registrar Inc.
US-based certification body for management systems.
Sponsored listings
Frequently Asked Questions
EN 3308:1996 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Screws, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature)/315°C". This standard covers: This standard specifies the characteristics of bolts, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS2 lubricated. Classification: 1 100 MPa / 315 °C
This standard specifies the characteristics of bolts, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS2 lubricated. Classification: 1 100 MPa / 315 °C
EN 3308:1996 is classified under the following ICS (International Classification for Standards) categories: 49.030.20 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3308:1996 has the following relationships with other standards: It is inter standard links to EN ISO 13631:2002. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3308:1996 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Screws, normal hexagonal head, threaded to head, in titanium alloy, anodized, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature)/315°CLuft- und Raumfahrt - Sechskantschrauben, Gewinde annähernd bis Kopf, aus Titanlegierung, anodisiert, MoS2-geschmiert - Klasse: 1 100 MPa (bei Raumtemperatur)/315°CSérie aérospatiale - Vis a tete hexagonale normale, filetées jusqu'a proximité de la tete, en alliage de titane, anodisées, lubrifiées MoS
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...