Single surface fixing and positive window restriction

  • Automatic locking
  • Automatic engagement
  • Dedicated key release
  • Restricts sash to 100mm opening
  • Surface fixing for new or retro mounting
  • Suitable for all window types
  • Conforms to BS EN 14351:2006 Clause 4.8..
  • Constructed from Stainless Steel & Zinc Alloy
  • Available in White or Brown
  • Angle stud plates supplied separately

Measure the offset of the Sash from the Frame (Dim X) and select the correct Angled Stud Plate from the table below.



Restrictors Left Hand Right Hand
White JBC360/W1 JBC361/W1
Brown JBC360/BR JBC361/BR


Angled Stud Plates (Dim X) 0-5 5-10 10-15
White JBC362/5/W1 JBC362/10/W1 JBC362/15/W1
Brown JBC362/5/B1 JBC362/10/B1 JBC362/15/B1


Angled Stud Plates (Dim X) 15-20 20-25 25-30
White JBC363/20/W1 JBC363/25/W1 JBC363/30/W1
Brown JBC363/20/B1 JBC363/25/B1 JBC363/30/B1