ABH full mortise continuous hinge

The heavy duty ABH full mortise continuous hinge  Full Concealed, heavy duty  No door inset, flush mount  48" door width maximum  450 lbs. door weight maximum  Average weight per unit = 11 pounds  "LL" model for doors up to 1,000 lbs (lead-lined staggered hole pattern)  Fasteners: 12-24 X 7/8" undercut self drilling, thread forming tek machine screws  Standard Lengths: 79", 83", 85", 95" and 120"  Finishes: Clear, dark bronze and black anodized  Fire Rating  Approved for use on metal swinging type fire doors rated up to and including 90 minutes (Specify "FR" option for 3 hour rating)  Approved for use on wood swinging type fire doors rated up to and including 60 minutes (Specify "FR" option for 90 minute rating)