SIST EN 2938:2001

Aerospace series - Screws, hexagon head, threaded to head, in heat resisting steel FE-PA92HT (A286), silver plated - Classification: 900 MPa (at ambient temperature) / 650 °C

This standard specifies the characteristics of hexagon headed screws, threaded to head in FE-PA92HT, silver plated, for aerospace applications. Classification:900 MPa / 650 °C

Luft- und Raumfahrt - Sechskantschrauben, Gewinde bis Kopf, aus hochwarmfestem Stahl FE-PA92HT (A286), versilbert - Klasse: 900 MPa (bei Raumtemperatur) / 650 °C

Diese Norm legt die Eigenschaften von Sechskantschrauben mit Gewinde bis Kopf, aus FE-PA92HT, versilbert, zur Verwendung in Luft- und Raumfahrt fest. Klasse: 900 MPa / 250 °C

Série aérospatiale - Vis a tete hexagonale, filetées sous tete, en acier résistant a chaud FE-PA92HT (A286), argentées - Classification: 900 MPa (a température ambiante) / 650 °C

La présente norme spécifie les caractéristiques des vis à tête hexagonale, filetées sous tête, en FE-PA92HT, argentées, pour les applications aérospatiales. Classification: 900 MPa / 650 °C

Aerospace series - Screws, hexagon head, threaded to head, in heat resisting steel FE-PA92HT (A286), silver plated - Classification: 900 MPa (at ambient temperature) / 650 °C

General Information

• Status: Published
• Publication Date: 31-Dec-2000
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2001
• Due Date: 01-Jan-2001
• Completion Date: 01-Jan-2001
• Ref Project: EN 2938:1995 - Aerospace series - Screws, hexagon head, threaded to head, in heat resisting steel FE-PA92HT (A286), silver plated - Classification: 900 MPa (at ambient temperature) / 650 °C

Overview

EN 2938:1995 is a CEN aerospace standard that defines the characteristics of hexagon head screws, threaded to head, manufactured from the heat‑resisting steel FE‑PA92HT (A286) and silver plated. The standard assigns a mechanical/temperature classification of 900 MPa (at ambient temperature) / 650 °C, describing the intended strength level and high‑temperature capability for aerospace applications.

Key topics

• Scope and product definition
  • Hexagon head screws with threads extending to the head (threaded to head).
  • Material: FE‑PA92HT (A286) - a heat‑resisting stainless steel alloy used in high‑temperature environments.
  • Surface finish: silver plated.
• Performance classification
  • 900 MPa classification at ambient temperature and suitability for service up to 650 °C as stated in the title.
• Dimensional and identification aspects
  • The standard specifies the characteristic features and required identification for this screw type (head form, thread to head construction, material and plating).
• Quality and conformity
  • Requirements are intended to support consistent manufacture, procurement and verification of aerospace fasteners. (See the full standard text for inspection, marking and documentation specifics.)

Applications

• Designed for aerospace fastener use where high strength and elevated‑temperature resistance are required.
• Typical application areas include assemblies and components exposed to elevated temperatures (service environments up to 650 °C), where a combination of heat resistance, mechanical performance and a controlled plated finish is required.
• Who uses EN 2938:
  • Aerospace designers and engineers specifying fasteners for high‑temperature zones.
  • Fastener manufacturers and heat‑treatment shops producing FE‑PA92HT (A286) screws.
  • Procurement and quality managers verifying compliance of supplied parts.
  • Maintenance and repair organizations requiring replacement fasteners that meet original specifications.

Related standards

• EN 2938 aligns with aerospace series fastener standards and material specifications for heat‑resisting steels (FE‑PA92HT / A286). For full design, testing and procurement workflows, consult complementary EN and national standards covering:
  • Fastener dimensions and thread standards.
  • Material specifications and heat‑treatment requirements for A286 alloys.
  • Coating/plating and corrosion protection standards.

Keywords: EN 2938, hexagon head screws, threaded to head, FE‑PA92HT, A286, silver plated, 900 MPa, 650 °C, aerospace fasteners, heat resisting steel.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Screws, hexagon head, threaded to head, in heat resisting steel FE-PA92HT (A286), silver plated - Classification: 900 MPa (at ambient temperature) / 650 °CLuft- und Raumfahrt - Sechskantschrauben, Gewinde bis Kopf, aus hochwarmfestem Stahl FE-PA92HT (A286), versilbert - Klasse: 900 MPa (bei Raumtemperatur) / 650 °CSérie aérospatiale - Vis a tete hexagonale, filetées sous tete, en acier résistant a chaud FE-PA92HT (A286), argentées
...