Specifications for Model 450HD

• Metal: 6063-T6 Extruded aluminum alloy with .090 min. wall, heat treated and aged to maximum hardness. Anodized at least 4 mills thick for a permanent luster finish
  
  
• Door Thickness: 1 3/4 inch. JOINTS: All butt joints are trued, tightened and smoothed
  
  
• Rails and Stiles: Bottom and top rails 5 3/8". Top rails are 3 1/4". End stiles are 3 1/4" or 5 3/8" wide and 1 3/4" thick. Combined width of meeting rails is  2 3/4". Vertical center stiles are 2 3/4" wide.  5/16" diameter through bolts when nuts and washers join stiles and rails. Any door over 16'2" has 5 3/8" top and bottom rails
  
  
• Glazing:  Panels are encased in vinyl moulding, held in place by aluminum snap-in beads and factory glazed where specified
  
  
• Counterbalances:  Mounted torsion springs and galvanized aircraft type cables
  
  
• Weatherstrip:  Factory applied vinyl weather strip across the full width of bottom rail. Chain Hoist and Electric Operators on large doors

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