Flush Bolt
Model：3004
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Product Description
Manufactured in Taiwan by Well Laud Mfg Corp, the Extension Flush Bolt 3004 is a concealed locking solution manufactured for double-leaf doors where secure top and bottom engagement is required. Ideal for commercial and residential projects, this extension flush bolt provides a clean, minimalist appearance while delivering reliable locking performance.
Key Features
- Concealed design: Maintains a streamlined door appearance with no protruding hardware.
- Durable mechanism: Die-cast zinc alloy body resists wear in frequent-use environments.
- Complete Kit Included: Each set comes complete with a steel extension rod, zinc rod tip, strike plate, and all necessary mounting screws.
- Flat-face profile: Compatible with standard mortise routing on timber, steel, or composite doors.
- Finish options: Painted or Satin Chrome to match architectural hardware suites.
- Export-ready packaging: Cartonized bulk packing simplifies shipping and installation.
Technical Specifications
- Face type: Flat
- Body size: 171 mm (L) × 25 mm (W)
- Material: Die-cast zinc alloy
- Rod: Extension rod included; multiple lengths available
- Finish: Painting or Satin Chrome
- Net weight: 0.23 kg per set
- Packaging: 2 sets per box; 40 boxes per carton
- Lead time: 50 working days after deposit
- Origin: Taiwan
- Sales: Export, Manufacture
Applications & Use Cases
- Top and bottom locking for inactive leaves on double doors in offices, hotels, schools, healthcare, and public buildings.
- Maintains clean sightlines for glass, metal or painted doors.
- Suitable for steel and composite doors with standard mortise routing.
Installation & Compatibility
- Identify door leaf: Install on the inactive leaf for top/bottom engagement.
- Prepare mortise: Route a standard flat-face pocket; ensure rod path alignment.
- Select rod length: Choose extension rod to reach frame strike at head or threshold.
- Fasten hardware: Secure with supplied screws; verify smooth bolt travel.
- Final check: Confirm bolt throw into strikes and clearance with the active leaf.
Compatible with standard head and floor strikes; coordinate rod tip with door frame strikes.
FAQs
- What is an extension flush bolt?
A concealed locking device installed into the door edge; an internal rod engages a frame or floor strike for secure top/bottom locking. - When should I choose this over surface bolts?
When a minimalistic door appearance is desired, or consistent alignment is needed in high-traffic areas. - Is the 3004 suitable for heavy use?
Yes; the die-cast zinc alloy mechanism supports frequent daily operation. Correct rod length and strike selection are recommended. - What finishes are available?
Satin Chrome for architectural consistency or painted finish to match door color palettes. - Can I request special packaging?
Yes; special packing options are available for project or export requirements.