- Half mortise, heavy duty
- 1/8" door inset
- 48" door width maximum
- 600 lbs. door weight maximum
- Average weight per unit = 12 lbs
- Frame leaf fastener cover is clear anodized aluminum
- Fasteners: 10-24 x 7/8" undercut, self-drilling, thread-forming tek machine screws, stainless steel for door and 1/4-20 x 3/4" round head self-drilling tek machine screws, zinc plated for frame
- Fire Rating - tested and certified by UL® (U.S.A. and Canada) on 4'0" x 10'0" fire rated doors, based on the following
- 20 minutes - wood doors
- 90 minutes - hollow metal and composite wood fire doors
- 3 hours - hollow metal doors