Anti-burglar hardware refers to the security-rated hinges, locks, cylinders, strikers and fittings installed on windows and doors to resist forced entry attempts.
Also known as burglar-resistant or security hardware, these components are tested and classified according to recognised standards, giving specifiers and building owners a reliable way to compare protection levels.
How is anti-burglar hardware classified?
In Europe, the most widely used standard is EN 1627, which defines resistance classes (RC) for complete door and window assemblies:
- RC 1 N — resists casual attempts with bodily force (pushing, shouldering, lifting).
- RC 2 N / RC 2 — resists attempts with simple tools such as screwdrivers, pliers and wedges.
- RC 3 — resists attempts with a second set of tools including a crowbar and small drill.
- RC 4 — resists experienced attackers with heavy tools including saws and chisels.
- RC 5 and RC 6 — resists power tools such as angle grinders and reciprocating saws.
A door or window only achieves a given class when all its components — frame, panel, glazing, lock, cylinder and hinges — meet the requirements together.
Key components
- Multi-point locking systems — engage the door or window sash at several points around the frame, making it far harder to prise open than a single-point lock.
- Security cylinders — feature anti-drill pins, anti-snap grooves and anti-pick profiles.
- Reinforced strikers and keep plates — heavy-gauge steel plates that resist levering.
- Security hinges — include anti-lift pins or dog bolts that lock the hinge side of the door into the frame when closed.
- Espagnolette and window handles with locks — prevent the handle from being turned from outside through a broken pane.
Where is it required?
Building regulations and insurance policies increasingly specify minimum resistance classes for external doors and accessible windows. Ground-floor apartments, commercial premises and public buildings often require RC 2 or higher.
Related terms
- Resistance class (RC)
- Multi-point lock
- Security glazing
- Cylinder lock