Product Description

Reliable Security with Classic Finish Options

The Union Door Lock LS 201 AB/BK is a versatile and dependable locking solution designed for a wide range of door applications. Union has been a trusted name in lock manufacturing since 1840, and the LS 201 model reflects that heritage with robust construction, smooth operation, and a choice of two classic finishes: Antique Brass (AB) and Black (BK) .

Whether you are securing a residential entry door, a commercial office, or an interior passage, the Union Door Lock LS 201 delivers the quality and reliability that professionals expect from Union. The lock is designed for easy installation and long-lasting performance, making it an excellent choice for both new construction and renovation projects.

Union door lock _ ls 201 Ab/ Bk

Key Features and Benefits

Durable Construction

The LS 201 is manufactured from high-quality materials, ensuring strength and durability for years of reliable service. The lock body and internal components are engineered to withstand frequent use without binding, sticking, or failing.

Union door lock _ ls 201 Ab/ Bk

Two Classic Finish Options

The AB/BK designation indicates the lock is available in two finishes:

• AB (Antique Brass): A warm, aged metallic tone that complements traditional and period properties. Ideal for wooden doors and classic interiors.

• BK (Black): A bold, modern finish that suits contemporary and industrial design schemes. Black hardware is increasingly popular for its striking contrast and fingerprint-resistant properties.

Both finishes are designed to resist tarnishing and corrosion, maintaining their appearance over time.

Versatile Application

The LS 201 is suitable for a variety of door types and functions. Depending on the specific configuration, it can be used for:

• Entry doors: Keyed locking for exterior security

• Interior doors: Privacy or passage function

• Commercial doors: Heavy-duty performance for high-traffic areas

Smooth Operation

The internal mechanism is precision-engineered for smooth key operation and reliable bolt engagement. The lock is designed to operate effortlessly, even after years of daily use.

Technical Specifications

Available Finishes

Applications

The Union Door Lock LS 201 AB/BK is suitable for:

• Residential Entry Doors: Front, back, and side doors

• Interior Doors: Bedrooms, bathrooms, and passage doors

• Commercial Offices: Interior and exterior office doors

• Retail Spaces: Stockroom and staff area doors

• Hospitality: Hotel guest rooms and staff areas

Installation Guide

Installing a door lock requires precision and the right tools. For best results, we recommend hiring a qualified carpenter or locksmith.

Tools Required:

• Drill with various bits

• Chisels (various sizes)

• Mallet or hammer

• Screwdriver

• Tape measure and pencil

• Mortice gauge (for mortice locks)

Step 1: Mark the Door
Position the lock at your desired height (typically 900-1000mm from the floor). Mark the center of the keyhole and spindle on both sides of the door.

Step 2: Drill the Keyhole and Spindle Holes
Drill the keyhole (typically 25mm) through the door. Drill the spindle hole (typically 8mm) through the door at 90 degrees to the keyhole.

Step 3: Mortice or Surface Mount
Depending on the specific LS 201 model, either mortice the lock case into the door edge or surface-mount it according to the instructions.

Step 4: Install the Lock Body
Insert the lock into the mortice or position it on the door surface. Secure with the provided screws.

Union door lock _ ls 201 Ab/ Bk

Step 5: Install the Strike Plate
Close the door and mark the position of the latch bolt and deadbolt on the door frame. Mortice the frame to accept the strike plate if necessary. Secure with screws.

Step 6: Install Handles and Cylinder
Attach your chosen handles and escutcheons. Insert the cylinder (if applicable) through the lock body and secure it.

Step 7: Test the Operation
Test the latch and deadbolt with the door open and closed. Ensure the key turns smoothly and the bolts engage the strike plate without binding.

Maintenance and Care

• Lubrication: Apply a dry graphite lubricant to the keyway and bolt mechanism annually. Do not use oil or WD-40, which can attract dust and gum up the mechanism.

• Cleaning: Wipe with a soft damp cloth. Avoid abrasive cleaners that may scratch the finish.

• Key Care: Keep spare keys in a safe place. If you lose a key, consider re-keying or replacing the cylinder for security.

• Inspection: Check the lock annually for signs of wear, loose screws, or sticking bolts. Address any issues promptly.

For reliable security and a choice of classic finishes, the Union Door Lock LS 201 AB/BK is a solid choice for residential and commercial doors.