Brava Urban Door Knob Entrance 
BRT3900B

Entrance Knob are used at entrances to buildings or other spaces such as offices or conference rooms. 

Entrance function - Key outside locks and unlocks both knobs. Turnsnib inside, locks and unlocks both knobs.

Features:

• Tiebolt fixing.
• Silca LW4 profile.(Rekeyable to 6 pin LW5)
• Construction keyable on all chambers.(Using BRUCKBALL)
• Spherical knob design
• 2 keys supplied

Specifications:

• Door Thickness: 35-45mm
• Backset: Adjustable 60 to 70mm
• Max. Knob Projection: 64mm
• Strike: 70mm x 27mm x 1.2mm
• Latch: Adjustable 60/70mm
• Latch Face Plate: 57mm x 25mm
• Cylinder: LW4 profile (C4)
• Door Handing: Non-handed knobs
• Rose Diameter: 66.5mm
• Lock Grade: Domestic
• Lock Type: Tiebolt 
• Function: Entrance
• Finish: Antique Copper