SIST EN 2649:2001
(Main)Aerospace series - Screws, pan head, slotted, threaded to head, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature) / 235 °C
General Information
- Abstract
This standard specifies the characteristics of screws, pan head, slotted, threaded to head, in alloy steel, cadmium plated. Classification: 900 MPa / 235 °C.
- Status
- Published
- Publication Date
- 31-Dec-2000
- 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
Overview
EN 2649:1995 (adopted as SIST EN 2649:2001) is a CEN aerospace standard that defines the characteristics of pan head, slotted screws threaded to the head, manufactured from alloy steel and cadmium plated. The document classifies these fasteners as 900 MPa (at ambient temperature) / 235 °C, indicating their designated mechanical class and elevated-temperature consideration for aerospace applications.
Key Topics
- Scope and classification
- Covers pan head, slotted screws with threads extending to the head.
- Classification given as 900 MPa (ambient) / 235 °C, used to indicate mechanical performance and temperature applicability.
- Material and surface treatment
- Specifies alloy steel construction and cadmium plating for corrosion protection and surface treatment consistency.
- Form and geometry
- Defines head style (pan head) and drive type (slotted) and that threads are formed or rolled/ cut up to the head.
- Characteristics and conformity
- Specifies the essential characteristics manufacturers and procurers must meet (mechanical class, material, plating and form factors) to assure interchangeability and performance in aerospace contexts.
- Identity and adoption
- Adopted nationally (SIST EN 2649:2001) and published in multiple languages for European aerospace industry use.
Applications
- Aerospace assemblies where compact pan head, slotted fasteners are needed and where parts are exposed to elevated temperatures (up to the classification temperature).
- Aircraft maintenance and repair for replacement parts specified by OEMs or maintenance documents that reference EN 2649.
- Manufacturing and procurement of aerospace components to ensure purchased screws meet the required mechanical class, material and plating.
- Common use-cases include interior fittings, avionics mounting, and other assemblies where specified strength, corrosion protection and head form are required.
Who Uses This Standard
- Aerospace engineers and designers specifying fasteners.
- Fastener manufacturers and heat-treatment/plating suppliers.
- Quality assurance, purchasing and maintenance personnel in aviation organizations.
- Certification and conformity assessment bodies verifying parts meet CEN requirements.
Related Standards
- SIST EN 2649:2001 (national adoption of EN 2649)
- Other CEN/EN and international fastener standards and aerospace fastener specifications (for sizing, testing and performance classes).
Keywords: EN 2649, aerospace screws, pan head slotted screws, cadmium plated screws, 900 MPa, threaded to head, alloy steel screws, aerospace fasteners.
Relations
- Referred By
SIST EN ISO 2495:2001 - Iron blue pigments - Specifications and methods of test (ISO 2495:1995) - Effective Date
- 28-Jan-2026
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Frequently Asked Questions
SIST EN 2649:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Screws, pan head, slotted, threaded to head, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature) / 235 °C". This standard covers: This standard specifies the characteristics of screws, pan head, slotted, threaded to head, in alloy steel, cadmium plated. Classification: 900 MPa / 235 °C.
This standard specifies the characteristics of screws, pan head, slotted, threaded to head, in alloy steel, cadmium plated. Classification: 900 MPa / 235 °C.
SIST EN 2649:2001 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.
SIST EN 2649:2001 has the following relationships with other standards: It is inter standard links to SIST EN ISO 2495:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 2649:2001 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, pan head, slotted, threaded to head, in alloy steel, cadmium plated - Classification: 900 MPa (at ambient temperature) / 235 °CLuft- und Raumfahrt - Flachkopfschrauben mit Schlitz, Gewinde annähernd bis Kopf, aus legiertem Stahl, verkadmet - Klasse: 900 MPa (bei Raumtemperatur) / 235 °CSérie aérospatiale - Vis a tete cylindrique fendue, filetées jusqu'a proximité de la tete, en acier allié, cadmiées - Classifica
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