
( Brand: Schlage ), ( Manufacturer Part Number: A199 ), ( Country Of Origin: United States ), ( Type: Lock ), ( Item Width: 18 In )
The **Schlage A199 Extension Link 18" Backset Deadbolt** is a premium, high-security smart home solution designed to seamlessly integrate with existing door hardware while providing enhanced convenience, security, and modern connectivity. This sleek, deadbolt-style extension link is engineered to bridge the gap between a traditional door knob or lever handle and the deadbolt cylinder, allowing for a smooth, one-handed operation without compromising on security. With an **18-inch backset** the standard measurement from the edge of the door to the center of the latch hole this extension link is compatible with most residential and commercial doors, ensuring a universal fit for both new installations and retrofits. Crafted from durable, corrosion-resistant materials, the Schlage A199 is built to withstand daily use while maintaining a polished, contemporary aesthetic that complements a wide range of interior and exterior designs. Its **18-foot wireless range** enables effortless pairing with Schlage s smart lock systems, such as the **Schlage Encode Smart Deadbolt** or **Schlage Connect **, allowing homeowners to control and monitor access remotely via smartphone apps like **Schlage Home** or **Amazon Alexa**, **Google Assistant**, or **Apple HomeKit**. This extension link also supports **temporary access codes**, **automatic locking/unlocking**, and **activity logs**, making it an ideal choice for those seeking both security and smart home automation. Whether used in a primary residence, rental property, or commercial space, the Schlage A199 Extension Link delivers a reliable, user-friendly solution that elevates the functionality of any door while maintaining a clean, unobtrusive appearance. Its robust construction and smart-ready design ensure peace of mind, knowing that your entry points are both secure and accessible with just a touch.
### **Schlage A199 Extension Link (18" Backset, 18-Foot Cable) Pros and Cons**
#### **Pros:**1. **Extended Reach** The 18-foot cable provides significant flexibility for installations where standard deadbolts would require excessive keyhole placement or awkward leveraging. This is particularly useful in:
- **Sliding glass doors** (where a standard deadbolt may not reach the strike plate).
- **French doors** or **patio doors** with wide gaps between hinges and latch points.
- **Retrofits** where drilling a new hole for a standard deadbolt is impractical (e.g., existing trim or drywall).
2. **Compatibility with Schlage Deadbolts** The A199 is designed specifically for Schlage s **A-Series deadbolts** (e.g., A-Series 625, 626, 628), ensuring a secure and reliable connection. It maintains the same keyway and cylinder compatibility as the original deadbolt.
3. **Durability and Security** Schlage is a well-regarded brand for residential security products. The extension link is made of sturdy metal and is designed to withstand regular use without weakening over time. It includes a **keyed lock** (on the extension link itself) to prevent unauthorized removal or tampering.
4. **Easy Installation** Replacing a standard deadbolt with the A199 extension link is a straightforward process that typically requires only a screwdriver and drill (if adjusting the strike plate). No major structural changes are needed beyond the original deadbolt installation.
5. **Aesthetic Consistency** Since the extension link is concealed within the door frame (when installed correctly), it does not detract from the door s appearance. The deadbolt itself remains the focal point of the lockset.
6. **Versatility** Works with both **single-cylinder** and **double-cylinder** Schlage deadbolts, depending on the model. This makes it adaptable to different security needs (e.g., single-cylinder for convenience, double-cylinder for childproofing or high-security areas).
7. **Cost-Effective Upgrade** Compared to replacing an entire door or lockset, the A199 extension link is a low-cost solution to extend the functionality of an existing deadbolt without sacrificing security.
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#### **Cons:**1. **Limited to Schlage Deadbolts** The A199 is **not universal**; it is **exclusively compatible with Schlage A-Series deadbolts**. Attempting to use it with other brands (e.g., Kwikset, Weiser, or even non-Schlage A-Series models) will result in a poor fit or failure to function.
2. **Potential for Misalignment** If the original deadbolt was not installed perfectly, the extension link may not align correctly with the strike plate, leading to:
- Difficulty in locking/unlocking.
- Increased wear on the deadbolt mechanism over time.
- Possible jamming if the door frame warps or shifts.
3. **Keyed Lock on the Extension Link** While the keyed lock on the extension link prevents tampering, it adds an extra step to the locking process. Users must:
- First lock the extension link with the key.
- Then turn the deadbolt s key or thumbturn to secure the door.
This can be inconvenient in emergencies or when exiting quickly.
4. **Not Suitable for All Door Types**
- **Hollow-core doors** may not provide enough structural integrity to support the extension link s force when locking.
- **Very thick doors** (e.g., solid wood or metal) may require additional adjustments to ensure the deadbolt aligns properly with the strike plate.
- **Sliding doors with non-standard tracks** may still require additional security measures (e.g., a secondary lock).
5. **Visible Cable (If Not Installed Properly)** While the extension link itself is concealed, the **cable routing** must be done carefully to avoid visible gaps or loose ends. Poor installation can compromise aesthetics and security.
6. **No Warranty on Extension Links Alone** Schlage s warranty typically covers the deadbolt itself, not the extension link. If the link fails due to manufacturing defects, the user may be responsible for replacement costs.
7. **Potential for Weakness in High-Security Applications** While the A199 is secure against casual tampering, it is **not a high-security product** like a reinforced strike plate or a deadbolt with anti-drill or anti-pick features. For maximum security (e.g., in high-crime areas), additional measures (e.g., a secondary lock or reinforced door) may be needed.
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### **Conclusion**
The **Schlage A199 Extension Link (18" Backset, 18-Foot Cable)** is a **practical and cost-effective solution** for extending the reach of a Schlage A-Series deadbolt in scenarios where standard deadbolts are impractical. It excels in **retrofits, sliding doors, and French doors** where space or structural limitations prevent the use of conventional locks. The brand s reputation for durability and security, along with easy installation, makes it a strong choice for homeowners seeking a simple upgrade.
However, its **limited compatibility** (only Schlage A-Series deadbolts), **extra locking step**, and **potential for misalignment** if not installed correctly are notable drawbacks. Additionally, it is **not a standalone high-security solution** and may require complementary measures for optimal protection.
### **Recommendation**
**Buy the Schlage A199 Extension Link if:**- You have a **Schlage A-Series deadbolt** and need to extend its reach for a sliding or French door.
- You want a **low-cost, easy-to-install** solution without replacing the entire lockset.
- The door frame allows for **proper alignment** of the extension link with the strike plate.
- You are willing to **follow the keyed lock procedure** for security.
**Avoid the Schlage A199 Extension Link if:**- You do not have a **Schlage A-Series deadbolt** (it will not work with other brands).
- Your door is **hollow-core or poorly constructed**, as it may not provide enough support.
- You require **high-security features** (e.g., anti-drill, anti-pick) that the extension link does not offer.
- The **installation would be difficult** due to door frame limitations or lack of proper tools.
**Alternatives to Consider:**- If your deadbolt is **not Schlage**, look for **universal extension links** (though these are rare and may not offer the same security).
- For **maximum security**, consider a **reinforced strike plate** or a **secondary lock** (e.g., a sliding door latch).
- If the door is **structurally unsound**, a **new solid-core door** with a standard deadbolt may be a better long-term solution.
**Final Verdict:** The Schlage A199 is a **solid choice for its intended purpose**, but its usefulness depends heavily on the specific installation scenario and compatibility with existing hardware. Always ensure proper installation to avoid functionality issues.
Designed by Schlage, a trusted brand in the USA, this lock mechanism is perfect for adding security and to your doors. Whether you're a homeowner or builder, this high-quality hardware is sure to enhance the look and functionality of your space. This vintage Schlage A199 18-inch extension link is brand new in its original packaging, with a backset of 18 inches.