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Three way locking system - hinged security doors
 
Master Screens have a range of hinged security doors that are manufactured with a Three Point Locking system for your protection - just one simple turn of the central locking key or snib, locks all three locks - bottom, middle and top!

The BIG 3 range consists of three doors:

Standard - base model with 7mm Grille
Safegard - beak lock, heavy duty door closer
Armoursafe - "Thick n Tough" 9mm Grille and frame.

Features of the BIG 3 range include:

- Extra strong door frames and solid corner stakes
- Three Grille Patterns
- Four x heavy gauge Monel alloy rivets for each corner
- Three hinges - resists jimmying
- One Way Vision mesh option on all doors.

All doors are manufactured and installed to the relevant Australian Standard (AS 2803.1:1994)

• locks top center and bottom
• one key operates all 3 locks
• height of lock can be positioned
to suit existing door lock heights

 

 

   
 
 
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