B-Harko H6 9/55 Cylinder Lock EN 1303 Class 6 Satin Nickel High Corrosion Resistance

Product Overview

The B-Harko H6 9/55 is a profile cylinder lock developed for modern interiors and commercial applications, compliant with EN 1303:2015-07 and tested by the Institute of Building Technology (ITB). Featuring a satin nickel finish, it is rated at security class 6.0, offers at least 100,000 locking cycles, and operates reliably within a temperature range of -20°C to +80°C, making it suitable for high-traffic doors in various environments.

This model distinguishes itself through its highest corrosion resistance rating (class C), ensuring long-term durability and reduced maintenance when exposed to moisture or fluctuating temperatures. Such performance is especially relevant for facility managers and procurement teams specifying door hardware for office buildings, public institutions, or multiresidential complexes. It is therefore recommended for bulk procurement in quality-sensitive commercial and residential projects where lifecycle costs and risk minimization are priorities.

Key Features

• Highest durability ? class 6, tested for 100,000+ operating cycles per EN 1303


• High corrosion resistance ? class C maintains function from -20°C to +80°C in demanding environments


• 6-pin mechanism ? enhanced protection with 100,000 possible key combinations


• Solid brass key ? 2.3 mm thick for extended service life and reliability


• Torque resistance ? cylinder withstands up to 15 Nm force against break-in attempts


• Satin nickel finish ? modern aesthetic suitable for contemporary spaces


• Certified by ITB ? independently tested for compliance with EN 1303:2015-07

Technical Specifications

• Standard: EN 1303:2015-07


• Certification: Tested by ITB


• Security class: 6.0


• Durability: 100,000+ cycles (class 6)


• Corrosion resistance: class C


• Temperature range: -20°C to +80°C


• Key type: Solid brass, 2.3 mm thickness


• Pin count: 6


• Torque resistance: 15 Nm


• Finish: Satin nickel


• Size: 9/55 (cylinder length)

Applications

Suitable for interior and exterior doors in residential complexes, office buildings, institutional facilities, and commercial units. Recommended where high durability and security are required, such as main entrances, apartment doors, or facility management settings. Compliant with EN 1303:2015-07 for use in projects requiring certified lock cylinders, including bulk or OEM procurement.

Packaging & Shipping

Each unit is packed in a presentation box with 3 keys, mounting screw, and maintenance/installation instructions. Compliance certificate and test report are available. Standard export bulk packaging options for larger orders.