A550HD Aluminum Continuous Gear Hinges Half Surface

• BHMA Grade 1
• Half Surface, Heavy Duty
• For Double Egress and Center Hung conversions
• 48" door width maximum
• 450 lbs. door weight maximum
• Average weight per unit = 11 lbs

• Fasteners:
  12-24 X 3/4" undercut self drilling, thread-forming tek machine screws for frame and 1/4-20 sex bolts and shoulder bolts for door
  
  
• Standard Lengths:
  79", 83", 85", 95" and 120"
  
  
• Fire Rating
  • Approved for use on metal swinging type fire doors rated up to and including 90 minutes
  • Approved for use on wood swinging type fire doors rated up to and including 60 minutes 

STANDARD FEATURES

• Continuous hinges alleviate most common alignment problems such as door binding and sagging by evenly distributing the weight throughout the entire door and frame.
• Provides extra security by eliminating the gap between the door and the frame; thus, disallowing the ability to pry the opening.
• All hinges are surface applied – no mortising of the door or frame required
• First Choice hinges are anodized after machining
• Will cover old butt hinge cut-outs
• All hinges are heavy duty at standard duty prices
• BHMA 156.25 Grade 1 Certified
• Templated hole patterns for standard-length hinges keep consistency over time.
• Standard Finishes – Clear anodized, dark bronze anodized, and black anodized
• Door reinforcement: None required
• Frame reinforcement: None required for doors up to 200 lbs. For doors more than 200 lbs., 16 gauge channel required