---
product_id: 22810674
title: "U 9819 Aluminum, Sliding Window Security Lock (4 Pack)"
brand: "prime-line"
price: "NZ$18"
currency: NZD
in_stock: true
category: "Prime Line"
url: https://www.desertcart.nz/products/22810674-u-9819-aluminum-sliding-window-security-lock-4-pack
store_origin: NZ
region: New Zealand
---

# Dual-position locking Tool-free install Durable aluminum build U 9819 Aluminum, Sliding Window Security Lock (4 Pack)

**Brand:** prime-line
**Price:** NZ$18
**Availability:** ✅ In Stock

## Summary

> 🔐 Elevate your window security game with effortless style and unmatched versatility!

## Quick Answers

- **What is this?** U 9819 Aluminum, Sliding Window Security Lock (4 Pack) by prime-line
- **How much does it cost?** NZ$18 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/22810674-u-9819-aluminum-sliding-window-security-lock-4-pack)

## Best For

- prime-line enthusiasts

## Why This Product

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

## Key Features

- • **Sleek, Minimalist Design:** Natural aluminum finish blends seamlessly with modern window frames for a clean look.
- • **Secure Your Space, Your Way:** Lock windows fully closed or ventilated for fresh air without compromise.
- • **Install in Seconds, No Tools Needed:** Effortless setup means instant peace of mind—no handyman required.
- • **Built to Last with Premium Materials:** Extruded aluminum and steel thumbscrew ensure long-term durability and security.
- • **Precision Fit for Metal Sliding Windows:** Fits up to 1/8 inch rails—check compatibility to guarantee perfect security.

## Overview

The Prime-Line U 9819 Sliding Window Security Lock is a 4-pack of extruded aluminum locks featuring a steel thumbscrew for secure, dual-position locking on metal horizontal sliding windows. Designed for easy, tool-free installation, it fits rails up to 1/8 inch wide and offers a sleek natural finish. Trusted by thousands with a 4.4-star rating, it combines durability and modern style to protect your home while allowing ventilation.

## Description

This is an extruded aluminum lock with steel thumbscrew used on metal horizontal sliding windows. Allows you to lock window in the closed or ventilating position. It can fit up to a 1/8 inch wide rail. Comes in a natural aluminum finish.

## Features

- WINDOW LOCK: Use this lock to secure metal horizontal sliding windows in a closed or ventilating position
- SECURE THUMB TURN SCREW: The thumb turn screw of this sliding window lock secures the lock in place
- EASY INSTALLATION: Easily install this secondary lock with no tools required
- DIMENSIONS AND FINISH: The secure lock has a natural finish and can fit up to a 1/8 inch wide rail
- COMPATIBILITY NOTE: Please refer to the line art drawing for dimensions and compare with your needs before purchasing (Not Universal)
- DURABLE CONSTRUCTION: Made from extruded aluminum with steel thumbscrew for long-lasting performance on metal horizontal sliding windows
- VERSATILE LOCKING POSITIONS: Allows you to lock your window in either the fully closed position or in a ventilating position for added flexibility

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BAFIQF0 |
| Additional Features | Thumbscrew Lock |
| Best Sellers Rank | #1,108 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Window Locks & Latches |
| Brand Name | PRIME-LINE |
| Color | Aluminum |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.4 4.4 out of 5 stars (11,796) |
| Finish Types | Aluminum |
| Global Trade Identification Number | 00049793098191 |
| Included Components | Sliding Window Security Lock |
| Item Dimensions | 0.5 x 1 x 0.44 inches |
| Item Type Name | Sliding Window Security Lock |
| Item Weight | 2.24 ounces |
| Lock Type | Window Lock |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Manufacturer Part Number | U 9819 |
| Manufacturer Warranty Description | Goods are warranted against manufacturing defects for 1 year. |
| Material Type | Aluminum |
| Model Name | Sliding Window Security Lock |
| Model Number | U 9819 |
| Number of Items | 1 |
| Number of Pieces | 4 |
| Recommended Uses For Product | Securing sliding windows |
| Shape | Rectangular |
| Style Name | Modern |
| UPC | 049793098191 |
| Unit Count | 4 Count |

## Product Details

- **Brand:** PRIME-LINE
- **Item dimensions L x W x H:** 0.5 x 1 x 0.44 inches
- **Lock Type:** Window Lock
- **Material:** Aluminum
- **Special Feature:** Thumbscrew Lock

## Images

![U 9819 Aluminum, Sliding Window Security Lock (4 Pack) - Image 1](https://m.media-amazon.com/images/I/71bRtrW8lBL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Frequently Bought Together

- Prime-Line U 9819 Aluminum, Sliding Window Security Lock (4 Pack)
- ZRFCXE Window Locks,4 Pack Sliding Window Locks With Key for Vertical & Horizontal Sliding Windows Doors,Easv to Install,Adjustable Security Window Lock for Patio Bedroom Home and Office (Black)
- BeBecome Sliding Door Security Bar，17-50 inch Adjustable Patio Door Security bar with Rubber Tips Apartment Bedroom Bottom of Door Heavy Duty Interior White

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/22810674-u-9819-aluminum-sliding-window-security-lock-4-pack](https://www.desertcart.nz/products/22810674-u-9819-aluminum-sliding-window-security-lock-4-pack)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-08-23*