Secure Sliding Windows & Doors Without Drilling

Protect your home with this 4-pack of Shop Square Sliding Window Locks . These heavy-duty aluminum thumb-turn locks install in seconds with no tools or drilling , making them ideal for securing sliding windows, patio doors, and window-mounted AC or fan installations while helping prevent unwanted window movement.

The vinyl-lined design protects your window frame from scratches while providing additional gripping power for a secure hold.

Features

✔ Includes 4 aluminum sliding window locks

✔ Heavy-duty aluminum construction

✔ Vinyl insert helps prevent scratches

✔ Increased gripping power for a secure hold

✔ Thumb-turn screws for tool-free installation

✔ No drilling or permanent modifications required

✔ Helps limit window opening for added child safety

✔ Suitable for indoor or outdoor use

Compatibility

Compatible with:

• Sliding windows
• Horizontal sliding windows
• Vertical sliding windows
• Sliding glass patio doors
• Window AC installations
• Window fan installations

Specifications

Quantity Included

• 4 Window Locks

Material

• Heavy-duty aluminum
• Protective vinyl insert

Track Compatibility

• Fits 3/16 in. tracks with vinyl insert installed
• Fits 3/8 in. tracks without vinyl insert

Required Clearance

• 28-36 mm

Installation

• No drilling required
• No tools required
• Thumb-turn screw tightening

Package Includes

• 4 Sliding Window Locks
• Vinyl protective inserts (pre-installed)

Important Before Purchasing

Please verify your window or door track before ordering.

These locks are designed for compatible sliding window and sliding door tracks only.

They are NOT intended for:

• Casement windows
• Awning windows
• Crank-operated windows
• Non-sliding window styles

For proper installation, your track must provide 28-36 mm clearance and be compatible with either:

• 3/16 in. track (using the vinyl insert), or
• 3/8 in. track (without the vinyl insert).

Why Buyers Choose These

• No-drill installation
• Strong aluminum construction
• Protects window frames from scratches
• Great for child safety
• Helps secure patio doors and sliding windows
• Ideal for AC and window fan installations
• Reusable and easy to reposition

Return Prevention Summary

This listing now proactively addresses the most common reasons for returns by clearly stating:

• ✔ Quantity (4 locks)
• ✔ Exact track compatibility (3/16" and 3/8")
• ✔ Required clearance (28-36 mm)
• ✔ Sliding applications only
• ✔ No-drill installation
• ✔ Vinyl inserts included
• ✔ What the product does not fit (casement, awning, crank windows)
• ✔ Package contents and installation requirements