Zinc Alloy Keyless Mechanical Coded Door Lock | Waterproof
Zinc Alloy Keyless Mechanical Coded Door Lock | Waterproof
Zinc Alloy Mechanical Coded Door Lock – Keyless, Waterproof & Battery-Free
Upgrade your home or office security with this Mechanical Password Door Lock by Fdit. Built from heavy-duty zinc alloy, this intelligent keyless coded lock requires no batteries, no smartphone app, and no electrician — just set your 2–4 digit combination and enjoy reliable, maintenance-free access every day.
Why You'll Love It
- Truly Keyless: No keys to lose or copy — access your door with a personal numeric code.
- Battery-Free Operation: Fully mechanical design means zero power needed. It works during outages and never dies at an inconvenient moment.
- Flexible Code Entry: Passwords do not need to be entered in a fixed sequence, adding an extra layer of security.
- Waterproof & Weather-Resistant: Sealed rubber ring protects internal mechanics from rain, humidity, and splashes — suitable for indoor and outdoor doors.
- Fireproof Zinc Alloy Construction: Robust zinc alloy body resists heat, corrosion, and physical wear for lasting performance.
- Wide Door Compatibility: Fits door thicknesses of 30–60 mm (1.18–2.36 in), covering most standard residential and commercial doors.
- Simple Installation: Complete hardware set included — two lock panels, rubber pads, lock tongue, screws, bolt, and an English instruction manual make setup straightforward.
Specifications
| Material | Zinc Alloy |
| Weight | Approx. 927 g / 32.7 oz |
| Password Panel Size | Approx. 107 × 43 × 40 mm / 4.2 × 1.7 × 1.6 in |
| Rubber Sealing Ring Size | Approx. 116 × 50 mm / 4.6 × 2.0 in |
| Password Length | 2–4 Digits |
| Applicable Door Thickness | 30–60 mm / 1.18–2.36 in |
| Applicable Door Type | Indoor & Outdoor Doors |
| Power Source | None required (fully mechanical) |
What's in the Box
- 2 × Door Lock Panel
- 2 × Rubber Pad
- 1 × Lock Tongue
- 1 × Door Buckle
- 1 × Stopper
- 4 × Screw
- 1 × Bolt
- 2 × Accessories
- 1 × Tweezers
- 3 × Long Screw
- 1 × Square Bar
- 1 × English Manual
Made in Mainland China.
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Frequently Asked Questions
Q: Does the mechanical coded door lock require batteries or any power source?
A: No — this lock is entirely mechanical and requires zero battery power or electrical wiring. The coded mechanism operates purely through the physical dial system, making it ideal for locations where power is unavailable or unreliable.
Q: Is this keyless combination door lock suitable for outdoor use?
A: Yes. The lock features a waterproof rubber sealing ring and a weather-resistant zinc alloy body, making it well-suited for both indoor and outdoor door installations exposed to rain or humidity.
Q: What door thicknesses are compatible with this coded lock set?
A: This lock set is designed to fit doors with a thickness of 30–60 mm (approximately 1.18–2.36 inches), covering most standard residential interior and exterior doors as well as common commercial doors.
Q: Can I change the password on this mechanical door lock?
A: Yes. The lock supports a customizable 2–4 digit combination. Refer to the included English instruction manual for step-by-step guidance on setting or changing your personal code.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.