B-Harko H6 Euro Cylinder Lock 30/55 mm Brass Class 6 EN 1303 6-Pin Security

Product Overview

The B-Harko H6 30/55 mm Euro cylinder lock is engineered for use in modern residential and commercial door assemblies requiring tested security and durability. Certified to PN: EN 1303:2015-07 by the Building Research Institute (ITB), it achieves classification 1 6 0 0 0 C 6 0, including high corrosion resistance and secure key management. The solid brass construction and robust internal mechanism offer smooth operation across demanding climates, from -20°C to +80°C.

What sets this cylinder apart is its class 6 rating for both durability and key security, guaranteeing at least 100,000 mechanical cycles and a minimum of 100,000 unique key combinations. This critical distinction minimizes maintenance and replacement risk for facilities managers overseeing high-traffic zones, and is recommended for bulk procurement in new-build residential complexes, security upgrades in office environments, and B2B distribution to hardware retailers.

Key Features

• Class 6 durability ? tested for minimum 100,000 operating cycles under PN: EN 1303:2015-07


• Key security class 6 ? provides at least 100,000 unique combinations via 6 security pins


• Corrosion resistance class C ? withstands temperature extremes from -20°C to +80°C


• Solid brass body ? offers increased resistance to torque up to 15 Nm and physical attack


• 2.3 mm thick brass keys ? enhances resistance to bending and breakage in daily use


• ITB certified ? independently verified for compliance and performance


• Includes 3 keys and mounting screw ? facilitates immediate installation and use

Technical Specifications

• Length: 30/55 mm


• Material: Brass


• Number of Security Pins: 6


• Key Thickness: 2.3 mm


• Operating Temperature Range: -20°C to +80°C


• Torque Resistance: 15 Nm


• Cycles Durability: ?100,000 cycles


• Key Combinations: ?100,000


• Classification: 1 6 0 0 0 C 6 0


• Certification: PN: EN 1303:2015-07


• Certification Body: ITB

Applications

Used in internal and external doors of residential apartments, modern commercial office spaces, and premium retail environments. Appropriate for new-builds, upgrades, and replacement projects requiring EN 1303-certified cylinders, with particular relevance in high-traffic and security-sensitive areas. Supports compliance for projects needing tested corrosion resistance, long service life, and advanced key security.

Packaging & Shipping

Each unit is supplied in an aesthetic retail box containing the cylinder, three solid brass keys, a mounting screw, an installation and maintenance manual, and certification documents. Bulk orders available for B2B procurement, with secure packaging for transit.