Set of WILKA 1400 40/50 + 1405 40g/50 inserts with knob, brass, 5 slotted keys, class C, K423

WILKA Class C Door Cylinders ? Superior Door Protection

WILKA Class C door cylinders feature a special 6-pin design and deliver exceptionally high quality. The brass and steel core pins are further enhanced with a nickel coating for superior durability. The key profile exhibits maximum resistance to manipulative opening methods ? achieving a level 6 rating (on a scale of 1-6) according to PN EN 1303:2007. Duplicate keys for WILKA Class C products are only available with the accompanying security card. WILKA cylinders have undergone rigorous testing, exceeding 100,000 cycles to achieve the highest possible performance rating. Maximum attack resistance guarantees 5-10 minutes of protection against drilling, mechanical attack, and attempts to remove the cylinder. WILKA door cylinders are packaged in an aesthetically pleasing, tamper-evident seal, guaranteeing security.

Due to the product's nature, please note that we cannot accept returns of opened or damaged packaging as these products cannot be re-introduced into the sales cycle.



• EN 1303:2015 Standard - 1 6 0 B 0 C 6 D


• Steel and brass core and housing pins hardened with a nickel coating


• Mushroom pins as anti-picking protection


• Hardened steel pins in the housing and cylinder protect against drilling


• Highest level of attack resistance: D


• Highest level of key code security: 6


• Highest durability rating 6: 100,000 cycles


• Highest level of corrosion resistance: C


• WQ-ITB burglary resistance class: C


• Approved for use in fire-resistant doors


• Special cylinder shape contributing to cylinder durability


• Paracentric cylinder profile hindering manipulative opening methods


• Extended keys with a special protected profile


• Key duplication available only at Authorized Service Centers with the security card


• WILKA cylinder sets include a double-sided cylinder and a cylinder with a knob, mounting screws, and 5 cut keys


• Individual WILKA cylinders include a cylinder, mounting screw, and 3 cut keys


• Custom order options:
  -Colors: Nickel, Brass, Black
  -Gear
  -Anti-snap protection
  -Secure coupling
  -Protection against saltwater
  -Single Key System
  -Master Key System

How to choose the right cylinder size?

Watch the video below.

Valued Customers, please make informed purchases

We are committed to your satisfaction and the highest security standards. Therefore, all certified cylinder locks are packaged in tamper-evident boxes to guarantee their condition and full functionality.

Due to the product's nature, please note that we cannot accept returns of opened or damaged packaging as these products cannot be re-introduced into the sales cycle.

Please carefully review the technical specifications and accurately measure your door dimensions before purchasing. If you have any questions or concerns, our team is available and happy to assist you in selecting the right product.

Thank you for your understanding and we invite you to explore our offerings.