WILKA 1400 K423 Cylinder Lock 35/65 Black Paracentric Key EN 1303 Grade C

Product Overview

The Wilka 1400 K423 35/65 black cylinder lock is a double-sided Euro profile insert designed for high-security doors in commercial and residential settings. Classified to Grade C according to WQ-ITB and EN 1303:2015 standards, it features 6-pin configuration, enhanced anti-burglary resistance, and is approved for installation in fire-rated doors. Its construction includes brass and steel pins, both strengthened with a nickel coating for maximum durability and 100,000 tested operation cycles.

The most significant differentiator is the protected key profile, which requires an authorized security card for duplication and offers a manipulation-resistant paracentric design. This feature ensures controlled key access and eliminates the risk of unauthorized key copying, making it highly suitable for bulk procurement in facility management, access control upgrades, and OEM installations requiring rigorous security protocols.

Key Features

• 6-pin mechanism ? advanced locking structure for enhanced security


• EN 1303:2015 certified ? complies with European standards for high-security cylinders


• Nickel-plated brass and steel pins ? increases durability and resistance to wear


• Anti-drill and anti-picking ? incorporates hardened pins and mushroom pins


• Paracentric keyway ? manipulation-resistant design prevents unauthorized opening attempts


• 100,000 tested cycles ? top-tier mechanical endurance for intensive use


• Controlled key duplication ? duplicating keys only possible with security card in authorized service centers

Technical Specifications

• Cylinder Length: 35/65 mm


• Color: Black


• Pin Material: Brass and steel, nickel-plated


• Key Profile: Paracentric, protected


• Number of Pins: 6


• Certification: EN 1303:2015 (grade 1 6 0 B 0 C 6 D)


• Burglary Resistance Class: C (WQ-ITB)


• Durability: 100,000 cycles


• Corrosion Resistance: C (highest class)


• Fire Door Approval: Yes


• Included Keys: 3 serrated keys

Applications

Used in entrance and interior doors for residential and commercial buildings, including offices, hotels, and apartment complexes. Suitable for fire-rated doors, access control systems, and premises requiring high resistance to forced entry and manipulation. Recommended for projects with strict security key management and facilities needing long operational lifespan.

Packaging & Shipping

Each unit is delivered in a tamper-evident sealed box containing the cylinder insert, mounting screw, and three serrated keys. Security card for key duplication is included. Standard export packaging ensures safe delivery.