Description
This manual flush bolt features a spring-loaded snap-action lever: moving it to the "up" position retracts the bolt, while moving it to the "down" position projects the bolt into the head frame.
Note: For metal doors, a pair (top & bottom) of manual flush bolts should be used on the inactive leaf of double doors.
Features
Non-Handed: Reversible design suitable for both left-hand and right-hand doors.
Ergonomic Lever: Easy finger-grip lever action ensures effortless operation and simple installation.
Anti-Rotation Design: Plunger features a milled side surface that engages with a matching guide to prevent bolt rotation and loosening.
Product Information
Features | ·Ergonomic finger-grip lever for effortless operation and simple installation. ·Plunger features a milled side surface that engages with a matching guide to prevent bolt rotation and loosening. |
Face Size | 6-3/4”x1”(171mmx 25.4mm) |
Length of Bolt Rod | 12”(305mm) |
Bolt Throw | 5/8”(16mm) |
Bolt Diameter | 1/2”(12.7mm) |
Material | Chromium-Plated Brass |
Dimensions | All lengths measured from center of bolt mechanism with
retracted bolt head |
Max.Door Size | 48”(1219mm)×96”(2438mm),Hollow-metal |
Frequently Asked Questions (FAQ)
Q1: Why does the description specify "For Metal Doors"? Does it require special installation?
A: Yes. Unlike wood doors, metal doors have thinner profiles and require specific hardware. This model (QK8008) is designed to accommodate the structure of hollow-metal doors. Additionally, the note specifies that a pair (one at the top and one at the bottom) must be used together on the inactive leaf of double doors to ensure sufficient security and stability.
Q2: How does the "Anti-Rotation Design" work? Is it necessary?
A: The plunger features a milled flat surface on its side. During installation, this surface slides into a matching guide channel within the door. This mechanism is crucial as it prevents the bolt from spinning over time, which stops the bolt from unscrewing itself due to vibration or repeated use.
Q3: I have a standard commercial metal door (48" x 96"). Will this bolt fit?
A: Yes. According to the specifications, this bolt supports a maximum door size of 48” × 96” (1219mm × 2438mm), which is a standard size for commercial hollow-metal doors. The bolt rod length is 12” (305mm), which provides ample engagement depth for such doors.
Q4: What are the exact dimensions of the visible part (face plate)?
A: The face plate (the part visible on the door edge) measures 6-3/4”x 1”(171mm x 25.4mm). Please ensure you have enough flat surface area on the door stile for installation.
Q5: Is this flush bolt suitable for both left-hand and right-hand opening doors?
A: Absolutely. The product features a Non-Handed (Reversible) design, making it universally compatible with both left-hand and right-hand door swings without requiring any modification
