WILKA 1400 K423 Cylinder Lock 40/40mm Class C EN 1303:2015 Matte Nickel 6 Tumblers

Product Overview

The WILKA 1400 K423 40/40 Cylinder Lock in matte nickel finish provides high-security locking for commercial, institutional, and residential doors. It features a six-tumbler mechanism and is classified in security class C, with advanced anti-picking and anti-drilling protections. Certified to EN 1303:2015 and WQ-ITB class C, this cylinder is approved for use in fire-resistant doors and demonstrates a tested durability exceeding 100,000 locking cycles.

The highest code protection level (6) and anti-manipulation mushroom pins differentiate this SKU, minimizing risk of unauthorized entry through picking or duplication. Key duplication is restricted to authorized services using the security card, making it suitable for bulk procurement in projects requiring highly controlled access, such as offices, multi-tenant buildings, or institutions.

Key Features

• Six-tumbler mechanism ? provides high resistance to manipulation and ensures class C security


• EN 1303:2015 and WQ-ITB C certified ? compliant with European standards for security cylinders


• Anti-drill protection ? hardened steel pins in body and cylinder protect against drilling attacks


• Paracentric key profile ? maximizes resistance to picking and unauthorized access methods


• Over 100,000 cycles durability ? delivers top-rated longevity and suited for high-traffic installations


• Restricted key duplication ? keys cut only with security card at authorized centers


• Approved for fire-resistant doors ? supports safety compliance in institutional and commercial buildings

Technical Specifications

• Length: 40/40 mm


• Security Class: C


• Mechanism: 6 tumblers


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


• Resistance to Attack: D (highest level)


• Code Protection Level: 6


• Cycle Durability: 100,000 cycles


• Corrosion Resistance: C (highest level)


• Anti-drill Pins: Hardened steel


• Key Profile: Paracentric


• Finish: Matte Nickel


• Included Keys: 3 cut keys

Applications

Used in commercial buildings, offices, institutional facilities, and residential contexts requiring high-security access control. Suitable for fire-rated and smoke-control doors, key-controlled installations, and high-traffic entryways. Ideal for bulk projects, master key systems, or OEM access management applications where security certification and restricted key duplication are mandatory.

Packaging & Shipping

Each unit is sealed in a tamper-evident box including the cylinder, mounting screw, and three cut keys. Security card for key duplication is included. Standard export packaging ensures integrity and full product functionality upon delivery.