B-Harko H6 55g/40 mm Cylinder Lock Brass 6-Pin Thumbturn EN 1303 Class 6

Product Overview

The B-Harko H6 55g/40 mm profile cylinder lock, equipped with a thumbturn and manufactured from brass, is designed for use in modern interior and entrance doors in residential and commercial buildings. Certified by the Building Research Institute (ITB) to PN: EN 1303:2015-07, this high-security cylinder achieves class 6.0 for durability and key-related security, suitable for installations demanding stringent safety and corrosion-resistance standards. The lock operates reliably in temperatures from -20°C to +80°C and withstands harsh environmental conditions due to its class C corrosion resistance rating.

Unlike generic cylinder locks, the B-Harko H6 features a 6-pin mechanism and has demonstrated a minimum operational durability of 100,000 cycles, verified through independent testing. This substantially reduces maintenance intervals and replacement risk in high-traffic or multi-tenant applications. Facilities managers and procurement specialists selecting door hardware for apartment complexes, hotels, or office buildings will thus benefit from longer service life and enhanced resistance to manipulation, making it especially well-suited for specification in projects requiring compliance documentation and proven performance.

Key Features

• Certified to PN: EN 1303:2015-07 ? ITB-tested and compliant with European standards for cylinder locks


• Class 6 durability ? minimum 100,000 operational cycles for long service life


• Class C corrosion and temperature resistance ? operates reliably from -20°C to +80°C


• 6-pin security mechanism ? increased protection against manipulation and unauthorized entry


• High-security key profile ? minimum 100,000 key combinations for enhanced master key control


• Solid brass construction ? ensures mechanical strength and resistance to wear


• Includes thumbturn ? convenient inside operation without a key

Technical Specifications

• Length: 55g/40 mm


• Material: Brass


• Lock Type: 6-pin cylinder


• Corrosion Resistance: Class C (EN 1303)


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


• Max Torque Resistance: 15 Nm


• Durability: Class 6 (?100,000 cycles)


• Key Security: Class 6 (?100,000 combinations)


• Certification: PN EN 1303:2015-07


• Test Report: ITB (Building Research Institute)


• Number of Keys: 3


• Key Thickness: 2.3 mm


• Included: Thumbturn

Applications

Used in interior and exterior doors of residential apartments, commercial buildings, office spaces, hotels, and other locations requiring high-security cylinder locks. Suitable for doors subjected to frequent use, high-traffic entrances, and projects demanding EN 1303 certified hardware and robust corrosion resistance. Appropriate for multi-unit retrofits, new developments, and specifications where compliance documentation is required.

Packaging & Shipping

Supplied in aesthetic retail packaging. Each set includes the cylinder lock with thumbturn, three brass keys, a mounting screw, and a user manual with maintenance instructions. Declaration of conformity and test certificate available as PDF attachment.