The Australian made ADI Blocklok 444 DD is tough and dependable. The lock is well-suited for use with double door shopfronts. It comes boxed with two keys and has a classic satin chrome finish.




  • The Blocklok 444 DD work with hinged and sliding exterior doors
  • The lock is compatible with swinging doors or hinged gates
  • Works with the majority of restricted key systems
  • Is compatible with timber applications as well as aluminium applications
  • All fixing components included
  • Mounting template supplied


  • A 13mm hardened steel pin runs through the side of the body
  • Works with doors up to 55mm (longer bolts are available if necessary)
  • 570 oval cylinder (the industry standard)
  • When unlocked, the locking bolt is retained
  • Available extended locking bolts
  • Heavy-duty construction
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