Whitco Lockable Chainwinder MK8

If you purchase more than 1 lock, all locks will be supplied keyed alike. ie. All locks work using the same key.

Chain Winder designed to suit awning window systems.

Chain Winder Function - provides locking for aluminium or timber awning windows.


  • Suits aluminium or timber awning windows with butt or hook hinges, or non friction stays Smooth operation
  • Through flyscreen operation
  • Push button to lock, key to unlock
  • Less than 1 mm between locking points
  • Maximum opening 300 mm, 19 handle turns to fully open (Window Restrictor Clip included)
  • Can be wound closed when locked
  • Hooded sash bracket prevents chain being dis-engaged from sash
  • Zinc diecast Security Sash plate
  • Standard and one way fixing screws supplied
  • Retrofits existing MK7 and MK8 Whitco chain winder models
  • Foldable knob in handle reduces width preventing damage and interference with blinds
  • Restricted opening versions available.
  • Zinc diecast body and mechanism, Passivated Zinc steel base plate and Passivated Zinc steel chain
  • Corrosion resistant version available with Stainless Steel chain and Stainless Steel base plate
  • Residential pack available with printed instructions on sealed poly bag
  • Exceeds the requirements of Australian window lock standard AS4145.3 - 2001 level DW2SW2K1
  • Restricted opening version can satisfy pool regulation requirements

Window Size Guidelines:

  • Maximum weight of sash 15kg with 300mm opening
  • Recommended maximum sash width of 900mm to ensure adequate weather sealing of the window system


  • Minimal effect to full exposure to 96 hours Neutral Salt Spray mounted on powder coated Aluminium sill section


  • Finish: White
SKU ASSW380216
Barcode # 9310584321691
Brand Whitco

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