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 Lever Extension Flush Bolts
 
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Item No: 557 x 19BFB
Lever Extension Flush Bolt With Bottom Fire Bolt
 
For Fire Rated Plastic & Wood covered fire doors measuring up to 4'w x 9'h rated up to 20 minutes.
Related Items:
Specifications:
Material:  
   Flush Bolt - Brass
   Bottom Fire Bolt - Stainless Steel 

Fastener:
   7 ea. #8 x 3⁄4 FH Combo Screws
   4 ea. 8-32 x 1/2 FH MS
   4 ea. #8 Counter Sunk Washer

Features:
 3/4" bolt throw, 3/4" backset; door strength maintained by corner reinforcing plate.
 When door is subjected to 230˚F the plug and black plastic cover will melt allowing the bolt to project, locking the leaves together.
 Bottom fire bolt eliminates need for floor prep.
 Oversize fire bolt strike hole allows for slight door misalignment.

Size:
   Top Bolt: 1" x 6-3/4"
   Bottom Bolt: 13/16" dia.

Weight: 0.9 lbs.

Most of Rockwood's products are available in a wide variety of architectural finishes. The photographs generally show only one finish for aesthetic reasons, but we make all traditional architetural finishes. The base metal is indicated in the Specs folder. All available finishes for this item are listed at right.

Available Finishes:

Template:

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Line Drawing:

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Application Suggestion:

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