Offset Defender High Security Window Lock

(Exc. 20% VAT)
(£11.64 Inc. VAT)


  • High-Security Window Lock
  • Available different sizes
  • Dimension:
  • Available Backset Size:22mm
  • Available Bar Lengths:350mm,450mm,590mm,
  • Available Sash Rebate Break Sizes:
  • 300-389mm
  • 390-519mm
  • 520-649mm
  • 650-779mm
  • 780-909mm
  • 910-1039mm
  • 1040-1169mm
  • 1170-1299mm
  • 1300-1430mm
  • Faceplate Width:16mm
  • Roller Height:9mm
  • Window Operation: Hinged
  • Numbers of keeps per Bar: 2,3 or 4
  • Available Inline and offset Gear Box


  • Designed to meet the industry standard test for window security in accordance with BS 7950
  • Unrivalled durability and abuse tolerance
  • All components proven to at least 30,000 operational cycles
  • Corrosion resistance to 500 hours salt spray test
  • Backed by a no quibble 12-year guarantee
  • No cropping or bar adjustment
  • Minimum screw fixing required
  • Quick to fit
  • Austenitic Stainless Steel bars and cams
  • Ground floor windows and other windows with easy external access


  • Satin Stainless
About Matrix


Established in 2000, we hold comprehensive stocks at our Northampton premises, supplying an extensive range of products on a nation-wide basis. Matrix Architectural Ironmongery is renowned for our high level of customer service, extensive product range and competitive prices, making us the obvious choice for your architectural ironmongery requirements. Please contact us on 01604 590330 or by e-mailing should you wish to discuss any aspect of your order. A member of our team will be able to assist you with any query – from advice on the right product for your particular requirement, to extensive after-sales assistance.

Matrix Architectural Ironmongery was established by Chris and Amy Butler in 2000 Chris' previous sales experience in large ironmongery firms and their commitment to top quality customer service meant that the business soon grew to become a well-known and respected architectural ironmongers.

Rapidly expanding from supplying locally, Matrix Architectural Ironmongery soon began to supply top quality products throughout Buckinghamshire, Northamptonshire and Oxfordshire, and then on a nation-wide basis.

Due to its continued success, Matrix Architectural Ironmongery now supplies products through our online catalogue. Should you not be able to find a particular product on our website, please don't hesitate to contact us on 01604 590330 or by e-mailing


Whether supplying one door handle for a restoration project or five hundred handles for a maintenance contract, Matrix Architectural ironmongery ensures that our customers access quality products and customer service at all times.

Our ethos is guided by the following:

  • Commitment to excellent customer service
  • Maintaining an extensive product range
  • Providing knowledgeable advice and top after-sales service
  • Keeping our prices competitive, and
  • Prompt order processing and delivery throughout the UK.


Please contact us on 01604 590330 if you would like to discuss your requirements or any aspect of your order.


Reviews (0)

Be the first to Write a Review for this item!

Flat 16mm