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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.
| General - US Finishes | US26D - Satin Chrome or US32D - Satin Stainless Steel/ 630 or US26 - Polished Chrome or US3 - Polished Brass or US4 - Satin Brass or US10 - Satin Bronze or US10B - Oil Rubbed Bronze |
| Brand | Rockwood |
| Bolt Type | Flush Bolt - Automatic |
| Door Type | Metal Door |
| Fire Rated | Fire Rated |
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