Description
Heavy-duty automatic flush bolt for timber doors, recessed flush design with automatic latching function upon door closure. Reversible handing, reliable operation, suitable for interior wooden double doors and fire-rated wood door applications.
Features
Non handed
For using in pairs at the top and bottom of inactive door
Operation
Designed to be installed in pairs at the top and bottom of inactive doors.
In double door applications, opening the active door automatically retracts both top and bottom bolts. When the active door closes, the bolts automatically extend into the frame and sill strikes, securing the inactive door
Product Information
Features | ·Ergonomic finger grip lever for easy operation and installation. ·Plunger with milled side surface engaging a matching guide to prevent rotation and loosening |
Face Size | 1” x 6-3/4” (25.4mm x 171mm) |
Bolt Throw | 5/8”(16mm) |
Bolt Diameter | 1/2”(12.7mm) |
Material | Stainless Steel 304 Latch and Striker |
Dimensions | All lengths measured from center of bolt mechanism with
retracted bolt head |
Max.Door Size | 48”(1219mm)×96”(2438mm),Wood covered composite |
Frequently Asked Questions (FAQ)
Q1: How does the automatic mechanism work without electricity?
A: This is a mechanical automatic flush bolt. It operates via a coordinated system with the active door. Opening the active door triggers a connected mechanism (usually via a coordinating bar or cable) that automatically retracts the bolts on the inactive door. When the active door closes, the mechanism releases, allowing the bolts to spring out and secure the inactive door.
Q2: Why is this model specifically labeled "For Wood Doors"? Can it be used on metal doors?
A: This model (QK8007) is optimized for the thickness and density of wood or wood-composite doors. The face plate size (1” x 6-3/4”) and internal spring tension are calibrated for timber applications. Using it on a thin metal door may result in improper fit or insufficient holding force.
Q3: What is the difference between the face size of this model (QK8007) and other similar models?
A: The face plate for Model QK8007 measures 1” x 6-3/4” (25.4mm x 171mm). This is a more compact profile compared to wider models (e.g., 8-1/2" length), making it suitable for doors with narrower stiles or where a smaller footprint is desired.
Q4: Is the stainless steel component durable enough for high-traffic areas?
A: Yes. The latch and striker are constructed from Stainless Steel 304, which provides excellent strength and corrosion resistance. Combined with the anti-rotation plunger design, this ensures reliable performance and longevity even in demanding commercial environments.
Q5: Does "Non-handed" mean I don't need to worry about door swing direction?
A: Correct. The Non-handed (Reversible) design allows the flush bolt to be installed on either the left or right side of the inactive door. This makes it universally compatible with both left-hand and right-hand reverse double door configurations.
