1. Introduction
Thank you for choosing the Emtek 8369 Square Style Brass Modern Double Cylinder Deadbolt. This manual provides detailed instructions for the proper installation, operation, and maintenance of your new deadbolt. Please read this manual thoroughly before installation and retain it for future reference.

Figure 1: Emtek 8369 Square Style Brass Modern Double Cylinder Deadbolt. This image displays the complete deadbolt assembly in a flat black finish, highlighting its square modern design.
2. Safety Information
Always follow basic safety precautions when installing and operating this product to reduce the risk of injury or damage.
- Wear appropriate personal protective equipment, such as safety glasses, during installation.
- Ensure all components are present and undamaged before beginning installation.
- Use only the tools specified in the installation guide.
- Do not modify the deadbolt or its components. Unauthorized modifications may compromise security and void the warranty.
- Keep children and pets away from the installation area.
- This is a double cylinder deadbolt, requiring a key for both interior and exterior operation. Ensure all occupants are aware of this feature and that a key is readily accessible in case of emergency.
3. Package Contents
Verify that all parts are included in your package before proceeding with installation.
- Exterior Cylinder Assembly
- Interior Cylinder Assembly
- Deadbolt Latch Mechanism
- Strike Plate
- Reinforcement Plate (if included)
- Mounting Screws
- Keys (typically 2)
- Installation Template (if included)
4. Setup & Installation
4.1 Tools Required
- Phillips Head Screwdriver
- Tape Measure
- Pencil
- Drill with appropriate bits (if new door preparation is needed)
- Chisel (if new door preparation is needed)
4.2 Installation Steps
Follow these steps carefully for a secure installation. If you are replacing an existing deadbolt, remove the old hardware first.
- Prepare the Door: Ensure the door has the correct bore holes (typically 2-1/8 inch diameter for the deadbolt and 1 inch diameter for the latch) and backset (2-3/8 inch or 2-3/4 inch). Use the provided template if drilling new holes.
- Install the Latch: Insert the deadbolt latch into the edge bore hole of the door. Ensure the "UP" arrow (if present) faces upwards. Secure it with the provided screws. The latch bolt should extend and retract smoothly.
- Install the Exterior Cylinder: Insert the exterior cylinder assembly through the 2-1/8 inch bore hole from the outside of the door. Ensure the tailpiece (the flat bar extending from the cylinder) passes through the slot in the latch mechanism.
- Install the Interior Cylinder: Align the interior cylinder assembly with the exterior cylinder. The tailpiece from the exterior cylinder should engage with the cam mechanism on the interior cylinder. Secure the interior cylinder to the exterior cylinder using the long mounting screws provided. Tighten screws evenly until snug, but do not overtighten.
- Install the Strike Plate: Close the door and mark the center of the deadbolt latch on the door frame. Chisel out a recess for the strike plate and secure it with the provided screws. Ensure the deadbolt extends fully into the strike plate opening without obstruction.
- Test Operation: Insert a key into both the exterior and interior cylinders. Turn the key to ensure the deadbolt extends and retracts smoothly without binding.
No official product videos were provided by the seller for installation. Please refer to the written instructions and diagrams (if available in a physical manual) for guidance.
5. Operating Instructions
The Emtek 8369 is a double cylinder deadbolt, meaning it requires a key to lock and unlock from both the interior and exterior sides of the door.
- To Lock: Insert the key into the cylinder on either side of the door. Turn the key clockwise (or counter-clockwise, depending on installation) until the deadbolt bolt fully extends into the strike plate. Remove the key.
- To Unlock: Insert the key into the cylinder on either side of the door. Turn the key counter-clockwise (or clockwise) until the deadbolt bolt fully retracts into the door. Remove the key.
Important: For safety, always ensure a key is readily available inside the premises for emergency egress, as this deadbolt cannot be opened from the inside without a key.
6. Maintenance
Proper maintenance will ensure the longevity and smooth operation of your deadbolt.
- Cleaning: Clean the exterior surfaces with a soft, damp cloth. Avoid abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish.
- Lubrication: Periodically (e.g., once a year), apply a small amount of graphite lubricant or a silicone-based lubricant specifically designed for locks into the keyway. Do not use oil-based lubricants, as they can attract dirt and dust.
- Check Screws: Occasionally check all mounting screws for tightness. Loose screws can affect the deadbolt's performance and security.
- Key Care: Do not force a key into the lock. If the key is difficult to insert or turn, check for obstructions or consider lubricating the lock.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Key is difficult to insert or turn. | Dirt or debris in keyway; worn key; lack of lubrication. | Clean keyway with compressed air. Lubricate with graphite or silicone-based lock lubricant. Try a different key. |
| Deadbolt does not extend or retract smoothly. | Misalignment of deadbolt and strike plate; loose mounting screws; latch mechanism obstruction. | Check alignment of strike plate and adjust if necessary. Tighten all mounting screws. Inspect latch for obstructions. |
| Deadbolt rattles or feels loose. | Loose mounting screws. | Tighten all mounting screws on both interior and exterior assemblies. |
| Deadbolt does not lock/unlock completely. | Door or frame has shifted; strike plate misalignment; worn components. | Check door and frame for warping or shifting. Realign strike plate. If components are worn, consider professional service or replacement. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Emtek |
| Model Number | 8369US19 |
| Lock Type | Double Cylinder Deadbolt |
| Material | Brass |
| Style | Modern, Square |
| Finish | Flat Black |
| Special Feature | Key Lock (both sides) |
| Item Weight | 4.54 g (Note: This weight seems unusually low for a deadbolt and might be a data entry error. Please refer to product packaging for accurate weight.) |
| ASIN | B003UOYUC2 |
9. Warranty & Support
Emtek products are manufactured to high standards and are backed by a manufacturer's warranty. For specific warranty details, including coverage and duration, please refer to the warranty card included with your product or visit the official Emtek website.
For technical support, replacement parts, or further assistance, please contact Emtek customer service directly. Contact information can typically be found on the product packaging or the official Emtek website.
No specific warranty or support contact details were provided in the product data.





