---
product_id: 389451840
title: "Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance"
brand: "shop square"
price: "€ 22.84"
currency: EUR
in_stock: true
reviews_count: 13
category: "Shop Square"
url: https://www.desertcart.de/products/389451840-shop-square-window-locks-4-pack-aluminum-thumb-turn-window
store_origin: DE
region: Germany
---

# Childproof safety design Heavy-duty aluminum lock No-drill, tool-free install Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance

**Brand:** shop square
**Price:** € 22.84
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in safety, unlock peace of mind.

## Quick Answers

- **What is this?** Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance by shop square
- **How much does it cost?** € 22.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/389451840-shop-square-window-locks-4-pack-aluminum-thumb-turn-window)

## Best For

- shop square enthusiasts

## Why This Product

- Trusted shop square brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Fit:** Fits sliding tracks from 28-36mm clearance, perfect for windows, patio doors, and even AC units.
- • **Premium Durability:** Crafted from heavy-duty aluminum with a vinyl lining to protect your frames and boost grip.
- • **Effortless Security:** No tools, no hassle—install in minutes and lock down sliding windows & doors with zero damage.
- • **Indoor & Outdoor Ready:** Weather-resistant design works seamlessly inside or outside, securing your space year-round.
- • **Childproof Peace of Mind:** Keep your little ones safe and your home secure with a lock that prevents unwanted openings.

## Overview

Shop Square Window Locks come in a 4-pack of heavy-duty aluminum thumb-turn locks designed for sliding windows and doors. Featuring a no-drill, tool-free installation and a protective vinyl lining, these locks fit tracks with 28-36mm clearance and provide childproof security for indoor and outdoor use.

## Description

Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance - desertcart.com

Review: Security and safety all in one: My piece of mind - These are perfect. I need vertical window locks to make sure my house was secure and these work really really well and I’m so happy that I found them.
Review: Would recommend! - High quality product for a great price! They are super easy to install, light weight, and very functional for thief prevention. You cannot open the window AT ALL when this is installed!! Size is ideal and it fits all the windows in my house. Package arrived fully sealed, instructions are on the back, and it has a black piece you insert under the metal part for extra precaution. So happy with my purchase!

## Features

- Sliding Track Lock: Secure your patio door, sliding glass door, and both horizontal & Vertical sliding windows. Ideal for securing a vertical window air conditioner or window fan setup.
- Durable & Sensible: Made of heavy-duty aluminum the lock includes a vinyl lining to prevent you from scratching your window frame. The vinyl insert provides additional gripping power when locking your windows down.
- No Tools Needed: These window locks are easy to install with double door lock thumb screws securing sliding door & window tracks up to 3/16" wide with the rubber insert or 3/8" without the rubber window seal.
- Child Proof Door Locks: Use this window lock to protect your family from intruders and more! The sliding door lock allows you to leave sliding windows & doors securely locked in position, whether fully closed or ajar to allow a breeze.
- Window Locks Security: Whether you are looking for a way to lock in an AC unit window setup, as a camper lock replacement, or as part of your babyproofing house setup.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09JY8MZ7X |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #10,947 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in Window Locks & Latches |
| Brand | Shop Square |
| Color | Metal - Large |
| Control Method | App |
| Controller Type | Hand Control |
| Customer Reviews | 4.3 4.3 out of 5 stars (7,833) |
| Date First Available | October 20, 2021 |
| Item Package Quantity | 4 |
| Item Weight | 3.84 ounces |
| Item model number | aecda97c-0e91-4218-b463-158a1cbcb924 |
| Lock Type | Screw Lock |
| Manufacturer | Shop Square |
| Material | Aluminum, Rubber |
| Number of Pieces | 4 |
| Package Dimensions | 5.47 x 4.88 x 0.55 inches |
| Part Number | LLTR4 |
| Shape | Square |
| Size | Large |
| Style | 4 Pack |
| UPC | 850036429111 |

## Product Details

- **Brand:** Shop Square
- **Color:** Metal - Large
- **Lock Type:** Screw Lock
- **Material:** Aluminum, Rubber
- **Style:** 4 Pack

## Images

![Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance - Image 1](https://m.media-amazon.com/images/I/41eQmBliSXL.jpg)
![Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance - Image 2](https://m.media-amazon.com/images/I/510kIjd4bSL.jpg)
![Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance - Image 3](https://m.media-amazon.com/images/I/516pR38ZibL.jpg)
![Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance - Image 4](https://m.media-amazon.com/images/I/51NcYddaazL.jpg)
![Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance - Image 5](https://m.media-amazon.com/images/I/51o7WbRvdfL.jpg)

## Questions & Answers

**Q: I have windows that raise up to open, will these work on those as well?**
A: They do not fit my double hung windows.

**Q: Whatvsize window frame do these fit? My frame is larger than 1/4 inch.**
A: these locks work great on the aluminum frame windows they were designed for. They will not work on vinyl framed windows unless you take the rubber out, and then they will mark up the frame

**Q: Would these work to permanently prop open a window that opens up and down? Not worried about safety issues as it’s an indoor window.**
A: It would, if you have a thin vertical rail, on the side that you can straddle with the lock, and have enough room to tighten the clamp screws. The clamp screws point away, from the window, and the protruding piece on the other side is what would but up against your window. (at the bottom if you were holding it open)

**Q: do you know what the interior measurement of the clamp is? (ie., how thick can the track be to fit in and get screwed into) - Thanks!**
A: without the rubber insert it is 7/16 ths

## Customer Reviews

### ⭐⭐⭐⭐⭐ Security and safety all in one: My piece of mind
*by K***L on December 13, 2025*

These are perfect. I need vertical window locks to make sure my house was secure and these work really really well and I’m so happy that I found them.

### ⭐⭐⭐⭐⭐ Would recommend!
*by P***O on March 22, 2025*

High quality product for a great price! They are super easy to install, light weight, and very functional for thief prevention. You cannot open the window AT ALL when this is installed!! Size is ideal and it fits all the windows in my house. Package arrived fully sealed, instructions are on the back, and it has a black piece you insert under the metal part for extra precaution. So happy with my purchase!

### ⭐⭐⭐⭐ Easy to install and it just works
*by D***S on July 22, 2023*

We bought these to limit the opening of our windows because we have young kids. It might be a little “overkill” as I do not think my kids will open a window and jump out but it is always better to be safe than sorry. Use: It does a great job of what it is supposed to do. The black rubber prevents scratching the surface of the window. It took us less than a minute to install them. It is so easy, it can even be done with one hand (see my video) Pro(s): - Very easy install - The grip is tight and does not easily come off Con(s): - Does not look the best - Although the black rubber prevents scratches on the front facing surface of the window frame, it does not prevent scratches on the side of the sliding window Tip(s): - If you leave a little rubber extended of where the sliding window will be hitting this stopper, it will help cushion it and prevent scratches

## Frequently Bought Together

- Shop Square Window Locks, 4 Pack Aluminum Thumb Turn Window Lock, Secure Sliding Windows & Doors, No-Drill Install, Child Proof, Indoor Outdoor, Requires 28-36mm Clearance
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**Shop now:** [https://www.desertcart.de/products/389451840-shop-square-window-locks-4-pack-aluminum-thumb-turn-window](https://www.desertcart.de/products/389451840-shop-square-window-locks-4-pack-aluminum-thumb-turn-window)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-28*