Euro Half Cylinder Locks | High Security Anti-Snap | Home Secure
Home Secure Shop offers a specialist range of Euro Half Cylinder Locks designed for applications where key access is only required on one side of the door. Perfect for garages, utility doors, and secure entry points, these cylinders provide simple functionality without compromising on strength.
Why Choose Half Euro Cylinders?
One-sided design – ideal for locations that don’t require double-sided access.
Easy installation – quick to fit into existing Euro profile lock cases.
Enhanced security – advanced protection against modern break-in techniques.
A half cylinder is a euro cylinder with a keyway on one side only and a short blank back — used where you only ever lock from outside, such as garage doors, roller shutters, electric gate boxes and some outbuildings.
Measure from the centre of the cam fixing hole to the keyway end — half cylinders are quoted as one figure plus the standard 10mm back, for example 40/10. Match the length so it sits flush with the outside face.
Up-and-over garage doors, roller shutter boxes, gate locks and key switches — anywhere there's no inside handle to lock from. If your garage door lock spins or the key sticks, a replacement half cylinder is usually the fix.
Yes — half cylinders can join a keyed alike set so your garage runs on the same key as your doors. Order them together and specify keyed alike.
