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Foachi Hardware provides a dedicated range of Special Locks engineered for door applications where standard smart locks or interior locks are not enough.
This category includes mechanical password locks, outdoor waterproof locks, patio door fingerprint locks, and specialized mortise locks for wooden and metal doors.
These products are designed for environments requiring higher security, non-electric operation, weather resistance, or custom door structures.
Whether you need a robust lock for courtyard gates, a fingerprint solution for patio doors, or a non-electronic mechanical lock, this collection offers targeted solutions.
Ideal for gates, patio sliding doors, exterior fences, wooden doors with custom sizes, utility rooms, and storage doors.
Mechanical password locks, mortise locks, waterproof smart locks—meeting needs where WiFi or batteries are not preferred.
Anti-tamper structures, zinc alloy or stainless-steel bodies, reinforced mortise options, and IP66 waterproof ratings.
Outdoor temperature fluctuations, humidity, dust, and rain cycles.
These special-purpose locks can be installed in:
Exterior gates
Garden fences
Courtyard entrances
Outdoor storage sheds
Perimeter passage doors
Balcony doors
Patio sliding doors
Utility room entrances
Carport doors
Rental rooms
Storage rooms
Office drawers & private offices
Server rooms
Tool rooms
Mechanical password locks for elderly care homes
Mechanical keypad locks for low-power scenarios
Mortise locks where electronic installations are not convenient
For users needing security without batteries, without mobile apps, and without wiring.
DJ15 Mechanical Password Lock: 142 mm x 42 mm, Black/sliver/gold
DJ23 Mechanical Lock for Wooden Doors: 142 mm x 42 mm
NJ12 Waterproof Mechanical Password Lock (Outdoor Gate): 107 mm x 43 mm
Ideal for: gates, rental rooms, basement doors, utility access.
For harsh environments, with strong resistance to rain, dust, sunlight, and temperature.
IP66 Waterproof Smart Lock for Outdoor Use
Ideal for: exterior gates, garden fences, exposed entrances.
Designed for sliding doors and patio structures requiring slim lock bodies.
DJ11 Patio Door With Fingerprint Smart Lock
Ideal for: patio doors, balcony doors, sliding entrances.
Black
Silver
Gold
Nickel Brushed
Antique Brass
Designed for wooden doors requiring customized mortise sizes (60mm / 70mm).
Zinc Alloy 60mm–70mm Mortise Lock for Wooden Doors
Ideal for: wooden entry doors, retrofits, custom door thickness.
| Feature | Mechanical Password Locks | Patio Fingerprint Smart Lock | Waterproof Smart Lock | Mortise Lock |
|---|---|---|---|---|
| Power Source | None (Mechanical) | Battery | Battery | None |
| Waterproof | Medium–High (NJ12 high) | Medium | High – IP66 | Low |
| Best For | Gates, rental rooms | Patio doors, sliding doors | Outdoor entrances | Wooden doors |
| Security Level | High (anti-tamper) | High | Very High | Medium–High |
| Installation | Easy | Medium | Medium | Requires mortise |
Yes. Models like NJ12 are fully mechanical, waterproof, and operate without batteries, making them ideal for outdoor gates and environments with rain, humidity, or dust.
High-IP locks such as the IP66 Outdoor Smart Lock offer strong anti-tamper design, weather resistance, and multiple unlocking options, making them highly secure for perimeter doors.
Slim fingerprint smart locks designed for sliding doors—such as the DJ11—fit patio door profiles while providing biometric security.
Each serves a different purpose. Mechanical locks offer reliability without power, while smart locks offer convenience and multi-factor unlocking.
Special Locks combine both depending on the model.
Only if they are waterproof and rated for outdoor use. Models with IP66 certification are suitable for exposed gate environments.
Mortise locks are installed inside wooden doors, providing strong structural support and a clean appearance. They are ideal for customized wooden entry doors.
A mechanical code lock is a battery-free lock that uses a rotary or push-button keypad. It allows users to unlock the door using a preset numeric code with no electronics involved.
Mechanical locks are more durable, weather-resistant, and require no power, making them ideal for outdoor gates, rental units, and utility rooms. Electronic locks offer convenience—but mechanical locks excel in reliability.
Mechanical locks operate through precision-engineered pins, cams, or levers. When the right code or key is used, internal parts align to release the latch.
Common types include mechanical keypad locks, lever locks, cam locks, and deadbolts.
Not all smart locks are waterproof. Only models with IP55–IP66 ratings are designed for outdoor exposure.
Use:
Waterproof models (IP65/IP66)
Protective covers
Proper installation to avoid water entering the keypad
Options include:
Installing patio smart locks
Adding security bars
Using reinforced glass film
Adding track blockers
Slim-profile sliding door smart locks, foot bolts, and double-bolt patio locks.
Yes. Some fingerprint smart locks, like DJ11, are designed for sliding patio doors.
Options include:
Smart sliding-door locks
Mortise-style patio locks
Track locks
Security bars
A mortise lock fits inside a pocket cut into the door, offering strong structural security.
Requires complex installation
Not suitable for every door thickness
