• Materials:
  - Chassis: Steel
  - Latch and Bolt: Zinc
  - Strike: Stainless Steel / Brass
  - Knob: Stainless Steel / Brass
  - Rose: Stainless Steel / Brass
• Backset: 60mm / 70mm
• Door Thickness: 35 ~ 50mm
• Function: Residental and light duty commercial
• Cylinder: Solid brass 5-pin tumbler cylinder plug with zinc housing
• No. of Keys: 3pcs of nickel plated brass key
• Master key available upon request

Suitable for: narrow fire control door in factory, supermarket, office building, amusement building Sound prevent: 80 DBFeatures: prevent shock anti-jammingOperating temp:0℃-50℃
Standard Packing: 6pcs
Outside carton dimension: 73Lx42Wx26H (cm)
Need to work in double door device for double door.
Nice design, very strongly, easy to install, quickly and very safety