Whitco CYL4 Multi Bolt

CYL4 Multi Bolt
CYL4 Multi Bolt
CYL4 Multi Bolt
CYL4 Multi Bolt

High security CYL4® Multibolt window lock with concealed fixing.

Suitable for sliding, casement, awning and double hung timber and aluminium windows.

Features of the CYL4 Multi Bolt

  • CYL4 One Key Security - Can be matched to most door locks for one key convenience
  • High security, robust construction, resists attack
  • Concealed fixing for security and style
  • Versatile face fix or side fix design
  • Key to lock, key to unlock
  • Suits a wide variety of applications
  • Enables fixed ventilation - (Sliding & Double Hung applications)
  • Standard and one way fixing screws supplied
  • Stainless steel ferrule for timber applications
  • Ideal for double hung windows
  • Strong 8mm steel bolts provided
  • 3 bolt types supplied
  • Solid zinc diecast metal body


CYL4 One Key Security

Use one key for all door and window locks.  It’s that easy! 


ASSA ABLOY’s patented CYL4® technology allows door and window locks to be keyed alike and operated by just one C4 door key.

Entrance doors, laundry doors, patio doors, patio bolts, window locks, screen doors and even padlocks for sheds and gates will all work with one key, providing customers with a convenient home locking solution.

CYL4® is a patented innovation that allows ASSA ABLOY window locks and patio bolts to be keyed to door locks that use the most common key type (C4), thus providing customers with the added convenience of having to use only one key around the home.

The ASSA ABLOY Key Gauge, provided in the CYL4® Keying Kit, allows fast and accurate determination of the key code.
The patented CYL4® cylinder has been designed to retain its wafers when the key is removed. This makes re-keying the CYL4™ cylinder quick and easy for retailers and locksmiths alike.
There are 10 CYL4® wafers numbered 0-9, that cover the 10 depths of a C4 key. Six wafers are arranged in pairs to match the first 3 cuts of the customer’s key.
Using the CYL4® Keying Kit, you can re-key any ASSA ABLOY CYL4® window lock or patio bolt to the customer’s C4 key in just a few minutes. EASY!


Most Australian door locks are operated by a C4 key. Traditional window locks are incompatible with a C4 key. Therefore home owners are required to carry at least one key for their door locks, and a different key (or keys) for their window locks.

The introduction of ASSA ABLOY’s unique CYL4® technology has revolutionised home locking security. Our new high security window lock and patio bolt ranges incorporate the patented CYL4® cylinder which is quickly and easily keyed alike to your customer’s 5 pin C4 door key.  


Suitable for timber or aluminium windows.




  • CYL4 cylinder - Can be Keyed Alike to all door locks that use a 5 pin key with a C4 profile, and to CYL4® window locks.
  • Or - 5 disc wafer cylinder - Can be Keyed Alike to other Whitco 5 disc products.
  • Two Whitco keys included
Display Pack


Cyl4 Multi Bolt - Single Pack

Description Part Number Barcode
Silver W2205111 9311847804753
Mahogany W2205112 9311847804760
White W2205116 9311847804807
Black W2205117 9311847804777
Primrose W2205119 9311847804784


Cyl4 Multi Bolt - 4 Pack, Keyed-Alike

Description Part Number Barcode
Silver W2205011 9311847804678
Mahogany W2205012 9311847804685
White W2205016 9311847804692
Black W2205017 9311847804708
Primrose W2205019 9311847804715


Trade Pack

Multi Bolt Cyl4 Cylinder, KA x 10 & x 40

Description Part Number Barcode
Silver W2205311C4 9311847807228
Mahogany W2205312C4 9311847807235
White W2205316C4 9311847807242
Black W2205317C4 9311847807259
Primrose W2205319C4 9311847807266


Multi Bolt 5 Disc Cylinder, KA x 10 & x 40

Description Part Number Barcode
Silver W2205311D5 9311847807334
Mahogany W2205312D5 9311847807341
White W2205316D5 9311847807358
Black W2205317D5 9311847807365
Primrose W2205319D5 9311847807389


Standard Finishes

Silver 11 Silver 11
Mahogany 12 Mahogany 12
White 16 White 16
Black 17 Black 17
Primrose 19 Primrose 19