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Half Euro Cylinders

Half euro cylinders are a type of euro profile cylinder lock that can only be operated from one side of a door. A euro profile cylinder lock is a cylinder lock made from a single piece of metal. This differs to other kinds of cylinder lock which can be made from more than one piece.  A half cylinder lock has all the same mechanisms as other cylinder locks, involving pins and tumblers which are moved to open a lock.

Half cylinder locks as we know them today are based off designs that were produced as early as 1805. The first patent for a pin and tumbler lock was issued to Abraham O. Stansbury in England. This central design has been maintained over the centuries and still keeps houses and commercial buildings safe across the globe. The security of half euro profile cylinder locks has developed over the years, with anti-snapping, anti-bumping, anti-drilling, and anti-picking measures being added.

A half euro cylinder lock is a euro profile cylinder lock that only features a locking mechanism on one side. This is useful if you only need to secure one side of a room, like a storage room. These can be found with either a thumb turn or a keyhole.

Here at we have a wide range of half euro cylinders, perfect for any job.

For a premium building job, we have a BSI Kitemark 1 star lock, perfect for reliability, security, and durability. This lock features anti-snapping technology and has been tested to high standards. If you want the best security on your half cylinder lock, then the Asec Kite Euro Half Cylinder is perfect for you.

For either landlords or facilities management companies, perhaps a masterkey system is what you’re looking for. If you want access to anywhere with just one key, fitting a masterkey system will be ideal for you. Our EVVA GPI HZ Euro Half Cylinder Masterkey lock suits this blueprint perfectly.

For euro half cylinder locks on a tighter budget, we stock sturdy, yet affordable locks as well. For less than £5 you can purchase a solid, 5 pin half cylinder lock. The Asec 5 Pin Euro Half Cylinder will fit your requirements and get the job done.

Our Top Half Euro Cylinder Locks




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