Introduction
The ULTRALOQ U-Bolt Smart Lock offers a secure and convenient keyless entry solution for your home. This manual provides detailed instructions for installation, operation, maintenance, and troubleshooting to ensure optimal performance and security.
Packing List
Before beginning installation, please verify that all components are present in the package:
- Exterior Assembly
- Interior Assembly
- Bolt
- Strike
- Mounting Plate
- 2 Backup Keys
- 4 AA Alkaline Batteries
- Screwdriver
- Reset Needle
- Screws (A, B, C, D, E)
Video: ULTRALOQ U-Bolt Smart Deadbolt Door Lock - This video provides an overview of the product components and a comprehensive installation guide.
Setup and Installation
Follow these steps carefully to install your ULTRALOQ U-Bolt Smart Lock.
1. Door Preparation
Ensure your door meets the following dimensions:
- Thickness: Between 1 5/16 inches and 2 inches.
- Diameter of the hole: 2 1/8 inches.
- Backset: 2 3/8 inches or 2 3/4 inches.
- Diameter of the hole in the door edge: 1 inch.

Image: Door dimensions for proper installation of the ULTRALOQ U-Bolt Smart Lock.
2. Installing Bolt and Strike
- Adjust the bolt length by pressing, twisting, and pulling/pushing to match your door's backset (2 3/8" or 2 3/4").
- Insert the bolt into the door edge, ensuring the 'UP' icon faces upwards.
- Secure the deadbolt with Screw C.
- Install the strike plate into the door frame using Screws A and B.
3. Installing Exterior Assembly
- If your door thickness is not standard (1 3/4"), cut the tailpiece using pliers according to the provided thickness guide.
- Keep the tailpiece horizontal and insert it through the middle hole of the bolt.
- Route the cable through the hole below the bolt.
4. Installing Mounting Plate
- Pass the cable through the bottom hole of the mounting plate.
- Ensure the tailpiece goes through the middle hole of the mounting plate.
- Secure the mounting plate using Screws D. Verify that two lines of the tailpiece are visible outside the hole.
5. Installing Interior Assembly
- Remove the battery cover from the interior assembly.
- Plug the cable connector firmly into the socket on the interior assembly until you hear a click.
- Rotate the knob on the interior assembly to a vertical position (unlocked).
- Carefully tuck the wire inside the door to prevent pinching.
- Attach the interior assembly to the mounting plate using Screws E.
6. Testing the Bolt
To ensure proper function, manually rotate the knob on the interior assembly a couple of times. The bolt should extend and retract smoothly. Close the door and test again to confirm the bolt matches the strike in the door frame.
7. Installing Batteries and Door Handing Process
- Rotate the knob on the interior assembly to a horizontal position (locked). The bolt should extend.
- Insert four AA batteries into the interior assembly. The red LED light will turn on, and you will hear a beep.
- Replace the battery cover.
Operating Instructions
The ULTRALOQ U-Bolt Smart Lock offers multiple ways to access your home.
1. Keyless Entry Methods
Access your door using any of the following methods:
- Keypad: Enter your custom code on the backlit keypad.
- Smartphone App: Lock or unlock via the ULTRALOQ smartphone application.
- Auto Unlock: The lock automatically unlocks when you approach with your smartphone.
- Smart Watch App: Control the lock directly from your smart watch.
- Mechanical Keys: Use the provided physical keys as a backup.

Image: Multiple access options for the ULTRALOQ U-Bolt Smart Lock.
2. App Control & Share Ekeys
The ULTRALOQ app provides comprehensive control and management features:
- Lock and unlock your door remotely (ULTRALOQ Bridge sold separately for remote access).
- Manage user access and authorize family, guests, or tenants with temporary codes or ekeys.
- View access logs to see who entered and when.
- Receive smart notifications for lock activity.

Image: ULTRALOQ app interface for controlling door locks.

Image: Customizing and sharing access codes via the ULTRALOQ app.
3. Auto Lock and Auto Unlock
The smart lock automatically locks on a preset timer and unlocks when you arrive at your door with your smartphone. Use the 'ULTRALOQ' button on the keypad for 'One Touch Lock'.

Image: Smart Auto Unlock and Lock feature in action.
4. Voice Control and Smart Home Integration
The ULTRALOQ U-Bolt supports voice control with Amazon Alexa and Google Assistant. It also works with SmartThings and IFTTT. An ULTRALOQ Bridge (sold separately) is required for these features.

Image: ULTRALOQ U-Bolt Smart Lock integration with various smart home ecosystems.
Video: How to Connect ULTRALOQ Smart Lock with Smartthings - This video demonstrates the process of connecting your smart lock to SmartThings.
Maintenance
1. Battery Replacement
The ULTRALOQ U-Bolt requires 4 AA batteries. The app will provide a low battery alert. Replace batteries promptly to ensure continuous operation.
2. Weather Resistance
The external Smart Lock is IP65 rated, making it dust and weatherproof. It is built to withstand both heat and cold, ensuring durability in various environmental conditions.
Troubleshooting
- Lock not responding: Check battery levels in the app or replace batteries. Ensure the interior assembly knob is in the correct position.
- Bolt not extending/retracting smoothly: Verify that the installation was done correctly, especially the tailpiece and bolt alignment. Ensure no obstructions in the door frame.
- Remote access issues: Confirm that the ULTRALOQ Bridge (if used) is properly connected to your 2.4GHz Wi-Fi network and the lock. Ensure your smartphone has a stable internet connection.
- Keypad not working: Ensure the keypad is clean and free from debris. Check battery levels.
- App connectivity problems: Restart the app and your smartphone. Ensure Bluetooth is enabled and the lock is within range. For Wi-Fi features, check your Wi-Fi connection and the Bridge status.
Specifications
| Feature | Detail |
|---|---|
| Brand | ULTRALOQ |
| Model Name | U-Bolt |
| Lock Type | Combination Lock, Deadbolt, Keypad |
| Material | Zinc |
| Finish Type | Brushed |
| Item Dimensions (L x W x H) | 2.95 x 0.94 x 2.95 inches |
| Item Weight | 2.82 pounds |
| Power Source | 4 AA batteries (included) |
| Connectivity Protocol | Bluetooth (Wi-Fi with optional Bridge) |
| Control Method | App, Push Button, Touch |
| Special Features | ANSI Grade 1 Certified, Smartphone Control, Auto Lock & Auto Unlock, Backlit Keypad, No Drilling Required |
| Smart Home Compatibility | Amazon Alexa, Google Assistant, SmartThings, IFTTT (with optional Bridge) |
Warranty and Support
The ULTRALOQ U-Bolt Smart Lock comes with a lifetime mechanical warranty and an 18-month electronic warranty. For support, please contact ULTRALOQ customer service:
- Online Phone Support: Monday to Friday, 7 AM to 6 PM PST.
- After-sales Email Service: 24/7 availability.





