B-Harko H6 Cylinder Lock 40/50 mm Brass 6-Pin Class 6 Key Security EN 1303

Product Overview

The B-Harko H6 40/50 mm cylinder lock is designed for door installations requiring high security and durability. Certified and tested by the Building Research Institute (ITB) to PN: EN 1303:2015-07, it offers class 6.0 performance, withstanding at least 100,000 operating cycles and providing excellent corrosion resistance in environments ranging from -20°C to +80°C. Commonly used in residential and commercial interiors where enhanced access control is needed.

A key differentiator of the B-Harko H6 is its class 6 key security, featuring a minimum of 100,000 key combinations. This reduces risk of unauthorized access for facility managers and procurement agents responsible for sensitive installations. The H6 cylinder is particularly suited for bulk replacement projects in office buildings, apartment complexes, and new construction demanding certified locking solutions.

Key Features

• Class 6 durability ? tested to minimum 100,000 operating cycles for long service life


• Corrosion resistance class C ? operates reliably from -20°C to +80°C in challenging conditions


• Key security class 6 ? at least 100,000 key combinations for improved access control


• 6-pin mechanism ? increased protection against picking and manipulation


• Torque resistance ? withstands a minimum of 15 Nm for enhanced break-in resistance


• Solid brass keys ? 2.3 mm thick for strength and longevity


• PN: EN 1303:2015-07 certification ? proven compliance for commercial and residential uses

Technical Specifications

• Size: 40/50 mm


• Material: Brass (cylinder and keys)


• Pin Count: 6


• Key Thickness: 2.3 mm


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


• Operating Cycles: ?100,000 (class 6 durability)


• Corrosion Resistance: Class C


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


• Torque Resistance: 15 Nm


• Certification: PN: EN 1303:2015-07


• Tested By: ITB (Instytut Techniki Budowlanej)


• Included Keys: 3

Applications

Used in residential and commercial buildings for interior and entrance doors requiring certified security and high durability. Suitable for bulk procurement in office complexes, apartment blocks, and new builds with access control requirements. Compliant with PN: EN 1303:2015-07 for projects specifying tested hardware.

Packaging & Shipping

Each unit is supplied in an aesthetic box containing the cylinder lock, three brass keys, mounting screw, and a maintenance and installation manual. Declaration of conformity and test certification are included in the package.