1. Product Overview
The Honeywell 8112309 Double Cylinder Deadbolt in Satin Nickel is designed to enhance residential security. It features a specialized pin and tumbler configuration to resist unauthorized "bump key" entry. This deadbolt is keyed on both sides, requiring a key for both locking and unlocking from the interior and exterior. It meets Grade-3 Residential Security standards as tested by ANSI (American National Standards Institute).
2. Key Features
- Anti-Bump Resistant: Engineered with a specialized pin and tumbler design to provide enhanced protection against "bump key" attacks.
- Rekeyable: The lock can be easily rekeyed by a professional locksmith to match existing keys if desired.
- Grade-3 Residential Security: Tested and certified by ANSI to meet standards for residential security, ensuring reliable performance.
- Adjustable Latch: Designed to fit door thicknesses from 1-3/8 inches to 1-3/4 inches and features an adjustable backset of 2-3/8 inches to 2-3/4 inches.
- Keyed Entry: Includes two identical large-head entry keys for convenient access.
3. Package Contents
Verify that all components are present before beginning installation.

Image 3.1: Complete package contents of the Honeywell 8112309 Double Cylinder Deadbolt.
- Two (2) Double Cylinders (interior and exterior)
- One (1) Adjustable Latch
- One (1) Strike Plate
- Mounting Hardware (screws)
- Two (2) Large Head Entry Keys
- Drilling Template (if needed for new installations)
- Installation Instructions
4. Setup and Installation
Installation of the Honeywell 8112309 Double Cylinder Deadbolt is designed to be straightforward, typically requiring only a Phillips screwdriver if the door is pre-drilled. For new door installations, a drilling template is included.
4.1 Prepare the Door
- Ensure the door is prepared with the correct bore holes and backset. The adjustable latch accommodates backsets of 2-3/8 inches or 2-3/4 inches.
- Verify door thickness is between 1-3/8 inches and 1-3/4 inches.
4.2 Install the Latch
- Insert the adjustable latch into the edge bore hole of the door. Ensure the latch bolt faces the correct direction for the door swing.
- Secure the latch with the provided screws.
4.3 Install the Cylinders

Image 4.1: Installation of the deadbolt cylinder using a Phillips screwdriver.
- Insert the exterior cylinder into the door, ensuring the tailpiece aligns with the slot in the latch mechanism.
- Insert the interior cylinder, aligning its tailpiece with the latch mechanism.
- Secure both cylinders using the long mounting screws, tightening them evenly until the deadbolt is snug against the door. Do not overtighten.
4.4 Install the Strike Plate
- Position the strike plate on the door frame, aligning it with the latch bolt.
- Mark and pre-drill pilot holes if necessary, then secure the strike plate with the provided screws.
5. Operation
The Honeywell 8112309 is a double cylinder deadbolt, meaning it requires a key to lock and unlock from both the interior and exterior of the door.

Image 5.1: Demonstrating smooth key operation of the deadbolt.
- To Lock: Insert one of the provided keys into the keyway on either side of the deadbolt. Turn the key clockwise until the deadbolt fully extends into the strike plate on the door frame. Remove the key.
- To Unlock: Insert one of the provided keys into the keyway on either side of the deadbolt. Turn the key counter-clockwise until the deadbolt fully retracts from the strike plate. Remove the key.
Always ensure the deadbolt is fully engaged or disengaged to prevent damage to the mechanism or door frame.
6. Maintenance
Proper maintenance ensures the longevity and smooth operation of your deadbolt.
- Cleaning: Clean the exterior surfaces with a soft, damp cloth. Avoid abrasive cleaners or solvents, which can damage the finish.
- Lubrication: Periodically apply a small amount of graphite-based lubricant into the keyway to maintain smooth key insertion and turning. Do not use oil-based lubricants as they can attract dirt and dust.
- Inspection: Regularly check all mounting screws for tightness. Ensure the deadbolt operates smoothly without excessive force.
7. Troubleshooting
If you encounter issues with your deadbolt, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Key is difficult to turn or sticky. | Lack of lubrication or debris in keyway. | Apply graphite lubricant to the keyway. Clean the key. |
| Deadbolt does not extend or retract fully. | Misalignment with strike plate or loose mounting screws. | Check alignment of strike plate and adjust if necessary. Tighten mounting screws. Ensure the door is properly closed. |
| Key breaks inside the lock. | Excessive force or worn key. | Contact a professional locksmith for key extraction and potential rekeying or replacement. |
| Deadbolt feels loose on the door. | Loose mounting screws. | Tighten the mounting screws evenly. |
8. Specifications
| Attribute | Detail |
|---|---|
| Brand | Honeywell |
| Model Number | 8112309 |
| Model Name | Contemporary Round Deadbolt Door Lock, Double Cylinder |
| Lock Type | Key Lock (Double Cylinder) |
| Special Feature | Anti-Bump |
| Material | Nickel |
| Finish Type | Satin |
| Color | Satin Nickel |
| Item Dimensions (L x W x H) | 3 x 5 x 8.5 inches |
| Item Weight | 1.21 Pounds |
| Door Thickness Compatibility | 1-3/8" to 1-3/4" |
| Backset Compatibility | Adjustable 2-3/8" to 2-3/4" |
| Security Grade | Grade-3 Residential (ANSI certified) |
| Batteries Required | No |
| UPC | 814113019527 |
9. Warranty and Support
This Honeywell Double Cylinder Deadbolt is backed by a limited lifetime warranty. For warranty claims, technical support, or further assistance, please refer to the contact information provided with your product packaging or visit the official Honeywell Safes & Door Locks website.