Please note that as of 12th June, our new order cut-off time for next day delivery is 3.30pm. For more information, click here.

ProSecure High Security Cylinders.

Sold Secure Diamond Grade, Secured by Design
& 3 Star Kitemarked.

BSI ProSecure 3 Star Cylinder banner

Sold Secure Diamond Grade.

The toughest security standard on the market

ProSecure enhanced security cylinders are the most secure on the market, designed to withstand all common methods of attack. Manufactured from brass and hardened carbon steel, combined with intelligent security features to provide maximum security.

Unique sacrificial point

for snap secure protection

High strength carbon steel block

resists snapping, deplugging and protects the cam from manipulation

Unique registration code

laser etched onto the cylinder for key copy control

Intelligent Security.

If cylinder snapping is attempted, the snap secure sacrificial point sets an interlocking cam mechanism into action, preventing the cylinder being unlocked from the outside. The cylinder remains operable from the inside for the home owner, allowing them to unlock the door and exit the property.

3 STAR CYL 31_V2

Closed profile technology with dimple key security

Unique sacrificial point for snap secure protection

Steel security pins for anti-drill, anti-pick & anti-bump protection with 180,000 effective differs

Full range of sizes and variants including thumbturn

Restricted profile dimple keys and key copy protection

To register your keys click here

Tested and approved.

Tested by the Master Locksmith Association (MLA) to meet the stringent requirements of Sold Secure Diamond Grade, Police Preferred Specification – Secured by Design approved and British Standards Institute (BSI) 3 Star Kitemarked.

Market-leading testing and guarantees.

10 Year Mechanical Operation

Mila guarantees the mechanical components of this product for 10 years, subject to our recommended level of regular maintenance.

See our terms and conditions here.


PAS24: 2016 is the current security standard for door sets in the UK. It certifies that a particular door, frame, lock and hardware set or window and hardware set has withstood a series of physical tests based on the common methods of burglary.


Enhanced Security for Replacement door cylinders and Security Hardware

TS007 is a Door and Hardware Federation (DHF) specification introduced to try to combat the problem of lock snapping.

BSEN 1303

The European standard for cylinders which establishes assessment and test criteria its resistance to physical attack, durability and key security.

Secured by Design

The Official Police Security Initiative for designing out crime. This product is a Police Preferred Specification and is Secured by Design (SBD) approved.

Explore our full range of the Doors Deserve Mila EDIT.

Contact our sales office

T. 01327 312 400 | E.