Rockwood 555 x 18BFB Lever Extension Flush Bolt with Bottom Fire Bolt

The 555 x 18BFB Lever Extension Flush Bolt with Bottom Fire Bolt is for use on select fire rated hollow metal swinging doors. This product fits ANSI A115 door and frame preparation, and when door is subjected to 230˚F the plug and black plastic cover will melt allowing the bolt to project, locking the leaves together. Its bottom fire bolt eliminates the need for floor prep and its oversized fire bolt strike hole allows for slight door misalignment.

Product Overview

• For Fire Rated Hollow Metal Swinging Doors measuring up to 4'w x 9'h rated up to and including 3 Hours
• Fits ANSI A115 door and frame preparation
• 3/4" bolt throw, 3/4" rod backset
• 12" rod length (center of face to bolt end - retracted)
• 1-1/2" adjustable bolt head
• When door is subjected to 230˚F, plug and black plastic cover melt allowing bolt to project, locking leaves together
• Other size rods available are 18", 24", 36", 48"
• Extra long bolt head - 2-1/2" (or to your specification)

Specifications

• Base Material: Brass
• Fastener: 8 ea. #8 x 3/4" FH combo screws
• Weight: 0.9lbs.
• Bottom Bolt Diameter: 13/16"
• Bolt Throw: 3/4"