SIST EN 3038:2001
(Main)Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature)/425 °C
Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature)/425 °C
This standard specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in head and corrosion resisting steel, passivated. Classification: 1100 MPa / 425°C.
Luft- und Raumfahrt - Flachkopf-Paßschrauben mit Flügelkreuzschlitz, kurzes Gewinde, aus korrosionsbeständigem und hochwarmfestem Stahl, passiviert - Klasse: 1 100 MPa (bei Raumtemperatur)/425 °C
Diese Norm legt die Eigenschaften von Flachkopf-Paßschrauben mit Flügelkreuzschlitz und kurzem Gewinde, aus korrosionsbeständigem und hochwarmfestem Stahl, passiviert, fest. Klasse: 1100 MPa / 425°C.
Série aérospatiale - Vis a tete cylindrique, a empreinte cruciforme déportée, tige normale a tolérance serrée, filetage court, en acier résistant a chaud et a la corrosion, passivées - Classification: 1 100 MPa (a température ambiante)/425 °C
La présente norme spécifie les caractéristiques des vis à tête cylindrique, à empreinte cruciforme déportée, tige normale à tolérance serrée, filetage court, en acier résistant à chaud et à la corrosion, passivées. Classification: 1100 MPa / 425°C.
Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature)/425°C
General Information
Overview
EN 3038:1996 (adopted as SIST EN 3038:2001) is a CEN aerospace series standard that specifies the characteristics of pan head screws with an offset cruciform recess, featuring a close-tolerance normal shank and short thread, made from heat- and corrosion-resisting steel, passivated. The standard gives a mechanical classification of 1100 MPa at ambient temperature / 425 °C, indicating suitability for demanding aerospace operating conditions.
Key Topics
The standard defines the essential characteristics and requirements for this specific aerospace fastener type, including:
- Head style and recess: pan head with an offset cruciform (cross) recess design.
- Shank and thread form: close-tolerance normal shank with a short threaded length.
- Material: heat- and corrosion-resisting steel suitable for elevated temperatures.
- Surface treatment: passivation requirements to improve corrosion resistance.
- Mechanical classification: strength rating 1 100 MPa (ambient) / 425 °C, used to assess performance at elevated temperatures.
- Dimensions, tolerances and identification: geometric and tolerance controls for interchangeability and traceability (as specified in the document).
- Marking and documentation: requirements for marking, certificates and batch traceability relevant to aerospace procurement and quality systems.
(Note: EN 3038 defines characteristics and classifications rather than detailed material chemistries or manufacturing processes.)
Applications
EN 3038 screws are intended for aerospace assemblies where:
- High tensile strength and controlled performance up to elevated temperatures are required.
- Corrosion resistance and passivated surfaces are needed for durability and long-term reliability.
- Close tolerance shanks and short threads are necessary for precise fit in confined or thin-walled components.
Typical users and stakeholders:
- Aerospace design and structural engineers specifying fasteners for aircraft systems.
- Fastener manufacturers and suppliers producing to aerospace specifications.
- Procurement and quality assurance teams verifying conformity and traceability.
- Maintenance, repair and overhaul (MRO) operations replacing or inspecting approved fasteners.
Related Standards
- EN 3038 is part of the CEN aerospace fastener series and is nationally adopted (e.g., SIST EN 3038:2001).
- For broader context, manufacturers and users commonly cross-reference other aerospace fastener standards and specifications (EN, ISO, NAS/AMS/SAE series) and material-specific standards when selecting compatible parts.
Keywords: EN 3038:1996, aerospace screws, pan head screw, offset cruciform recess, heat and corrosion resisting steel, passivated, 1100 MPa, 425 °C, close tolerance shank, short thread.
Frequently Asked Questions
SIST EN 3038:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature)/425 °C". This standard covers: This standard specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in head and corrosion resisting steel, passivated. Classification: 1100 MPa / 425°C.
This standard specifies the characteristics of screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in head and corrosion resisting steel, passivated. Classification: 1100 MPa / 425°C.
SIST EN 3038:2001 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.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature)/425°CLuft- und Raumfahrt - Flachkopf-Paßschrauben mit Flügelkreuzschlitz, kurzes Gewinde, aus korrosionsbeständigem und hochwarmfestem Stahl, passiviert - Klasse: 1 100 MPa (bei Raumtemperatur)/425 °CSérie aérospatiale - Vis a tete cylindrique, a empreinte cruciforme déportée, tige normale a tolérance serrée, filetage court, en acier résistant
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