Rockwood 2840 Automatic Flush Top or Bottom Bolt | For Fire-Rated Metal Doors

The Rockwood 2840 Automatic Flush Bolt is a high-performance architectural component designed to secure the inactive leaf of a pair of metal doors. Engineered for fully automatic operation, this bolt engages seamlessly when the door closes and retracts instantly when the active leaf is opened. UL Listed for fire-rated doors (Labels A-E), it provides a reliable, code-compliant solution for commercial openings up to 4'W x 8'H.

Precision Engineering & Life-Safety Features

• Fully Automatic Latch Release: Eliminates manual intervention. The bolt automatically retracts when the active door is opened, ensuring an unobstructed opening for high-traffic or ADA-compliant environments.
  
• Thermal Lock Protection: Features an integrated thermal lock that automatically deadlocks the inactive door when temperatures reach critical fire levels, maintaining the integrity of the fire barrier.
  
• Damage-Resistant Override: A built-in override mechanism protects the door and hardware. If the bolt head is blocked, the mechanism prevents the rod from bending or the door from being forced and damaged.
  
• Universal Handing & Fit: This non-handed bolt fits standard ANSI A115 door and frame preparations, making it an easy retrofit or new installation choice for any metal door swing.
  
• Adjustable Bolt Rods: Includes a bolt head rod that is adjustable up to 1-1/2", allowing for a precision fit against the strike even if there are minor misalignments in the frame.
  

Technical Specifications

• Model: Rockwood 2840
• Application: Top or Bottom Bolt for Fire-Rated Metal Doors
• Material: Available in Brass, Bronze, or Stainless Steel
• Dimensions: 1" W x 6-3/4" L
• Closing Force: Low (5 lbs. maximum)
• ANSI/BHMA: A156.3 Type 25
  
• Fastener Kit: Includes all necessary combo screws and plastic anchors for a secure mount.