EN 12051:1999
(Main)Building hardware - Door and window bolts - Requirements and test methods
General Information
- Abstract
This European Standard specifies performance, security and safety requirements (including test methods) for single point bolts and their associated keeps, used to secure, or increase the security of, doors or windows in buildings; where operation is by lever, knob, slide, pull, etc, or removable implement (but not a multiple differ key) from the protected side of the leaf only. Spring engaging bolts, and bolts with locking facility are included if they are, by definition, bolts (see 3.1.1).
- Status
- Published
- Publication Date
- 19-Oct-1999
- Withdrawal Date
- 29-Apr-2000
- Technical Committee
- CEN/TC 33 - Doors, windows, shutters and building hardware
- Drafting Committee
- CEN/TC 33/WG 4 - Building hardware
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 10-Jan-2023
- Completion Date
- 23-Sep-2026
- Directive
- Harmonized Standard305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
Not Harmonized89/106/EEC - Construction products
Overview
EN 12051:1999 is a European Standard published by CEN that defines requirements and test methods for door and window bolts used in building hardware. The standard covers single‑point bolts and their associated keeps intended to secure or enhance the security of doors and windows. It focuses on performance, security and safety aspects, and specifies applicable test methods. The scope applies where operation is by lever, knob, slide, pull, or removable implement (from the protected side of the leaf only). Spring‑engaging bolts and bolts with locking facilities are included when they meet the standard’s definition of a bolt.
Key Topics
- Performance requirements: Criteria for how single‑point bolts must behave in normal use to ensure durability and reliable operation.
- Security requirements: Measures and tests that assess the bolt’s ability to resist unauthorized opening or forced entry.
- Safety requirements: Conditions to prevent hazards during normal operation, including secure engagement and release actions.
- Test methods: Standardized procedures to verify compliance with performance, security and safety criteria (as defined in the standard).
- Product scope and definitions: Clarifies which types of bolts are covered (single‑point, spring‑engaging, bolts with locking facility) and which are excluded (e.g., multiple‑differ key mechanisms are not covered when operated from the protected side).
- Operational modes: Coverage of manual actuation methods such as levers, knobs, slides, pulls and removable implements.
Applications
EN 12051:1999 is practical and relevant for:
- Manufacturers and product designers of building hardware seeking to design bolts that meet European performance and safety expectations.
- Test laboratories and certification bodies conducting standardized tests to demonstrate compliance.
- Specifiers, architects and engineers writing procurement or installation specifications for doors and windows in residential, commercial or public buildings.
- Installers and locksmiths selecting appropriate bolts and keeps for renovation, security upgrades or compliance with building codes.
- Procurement and quality assurance teams evaluating products against recognized European standards.
Use cases include product development, conformity testing, selection of hardware for building projects, and preparing technical documentation for regulatory compliance.
Related Standards
- EN 12051:1999 (this document) - European standard for door and window bolts.
- Organization: CEN; ICS classification includes 91.190 (Building accessories).
Keywords: EN 12051:1999, door bolts, window bolts, building hardware, test methods, performance requirements, security requirements, single‑point bolts.
Relations
- Effective Date
- 25-Aug-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Get Certified
Connect with accredited certification bodies for this standard
DIBt (Deutsches Institut für Bautechnik)
German Institute for Building Technology.
DIN CERTCO
DIN Group product certification.

Aboma Certification B.V.
Specialized in construction, metal, and transport sectors.
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Frequently Asked Questions
EN 12051:1999 is a standard published by the European Committee for Standardization (CEN). Its full title is "Building hardware - Door and window bolts - Requirements and test methods". This standard covers: This European Standard specifies performance, security and safety requirements (including test methods) for single point bolts and their associated keeps, used to secure, or increase the security of, doors or windows in buildings; where operation is by lever, knob, slide, pull, etc, or removable implement (but not a multiple differ key) from the protected side of the leaf only. Spring engaging bolts, and bolts with locking facility are included if they are, by definition, bolts (see 3.1.1).
This European Standard specifies performance, security and safety requirements (including test methods) for single point bolts and their associated keeps, used to secure, or increase the security of, doors or windows in buildings; where operation is by lever, knob, slide, pull, etc, or removable implement (but not a multiple differ key) from the protected side of the leaf only. Spring engaging bolts, and bolts with locking facility are included if they are, by definition, bolts (see 3.1.1).
EN 12051:1999 is classified under the following ICS (International Classification for Standards) categories: 91.190 - Building accessories. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 12051:1999 has the following relationships with other standards: It is inter standard links to ISO 2336:1980, EN 1670:1998, EN 1634-1:2014+A1:2018, EN ISO 19014-3:2018, EN 15859:2010, EN ISO 10374:1997, EN 12645:1998, EN 14600:2005. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 12051:1999 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 12051:1999 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.Stavbno okovje - Zapahi za okna in vrata - Zahteve in preskusne metodeBaubeschläge - Tür- und Fensterriegel - Anforderungen und PrüfverfahrenQuincaillerie pour le bâtiment - Verrous de portes et de fenetres - Prescriptions et méthodes d'essaiBuilding hardware - Door and window bolts - Requirements and test methods91.190Stavbna opremaBuilding accessoriesICS:Ta slovenski standard je istoveten z:EN 12051
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