444 Bloklok - Double

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ADI is an innovative Australian company located on the south coast of NSW.

Their lockable bolts are a time-tested commercial security device.

444 Double Bloklok is ideal for;

  • Double swinging doors
  • Double sliding doors


  • Through hardened and tempered 4140 steel locking pin (13mm)
  • Zinc construction
  • Concealed rear fixing
  • Reversible
  • Pin retained when unlocked
  • Secured to door with 4 x 10mm bolts


  • Length: 110.5mm (Bloklok) / 65mm (block)
  • Width: 41mm (Bloklok) / 41mm (block)
  • Height: 39.5mm (Bloklok) / 34mm (block)
  • Weight: 749g (Bloklok) / 380g (block)


Brand ADI

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