---
product_id: 295859749
title: "Defender Security U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8” Hardened Steel Bar with Diecast Base, Nickel Plated"
brand: "defender security"
price: "¥6325"
currency: JPY
in_stock: true
reviews_count: 5
category: "Defender Security"
url: https://www.desertcart.jp/products/295859749-defender-security-u-9846-patio-sliding-door-loop-lock-increase
store_origin: JP
region: Japan
---

# 1-1/8” hardened steel bar Child-safe, out-of-reach design Quick & easy installation Defender Security U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8” Hardened Steel Bar with Diecast Base, Nickel Plated

**Brand:** defender security
**Price:** ¥6325
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in safety, unlock peace of mind.

## Quick Answers

- **What is this?** Defender Security U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8” Hardened Steel Bar with Diecast Base, Nickel Plated by defender security
- **How much does it cost?** ¥6325 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/295859749-defender-security-u-9846-patio-sliding-door-loop-lock-increase)

## Best For

- defender security enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Setup:** Includes all fasteners for a hassle-free, quick installation.
- • **Sleek Nickel Finish:** Nickel plating adds corrosion resistance with a modern look.
- • **Steel-Strong Security:** Hardened steel locking bar ensures maximum durability and protection.
- • **Secondary Locking Power:** Boost your sliding door’s security beyond the primary lock.
- • **Child-Safe Peace of Mind:** Install high to prevent kids from opening doors unsupervised.

## Overview

The Defender Security U 9846 Patio Sliding Door Loop Lock is a robust secondary locking device featuring a 1-1/8” hardened steel bar with a nickel-plated diecast base. Designed for quick installation with included fasteners, it enhances home and office security while offering child-safe protection by being mountable out of reach. Durable and corrosion-resistant, it secures sliding doors firmly to the jamb, providing an essential layer of defense.

## Description

Secure your home or office doors with additional security with the U 9846 Patio Sliding Door Loop Lock. This secondary security locking device provides additional, increased home safety for sliding patio doors. It can also be placed out of reach of children, high on a door, so they cannot open the door themselves and enter or exit into dangerous areas. This door loop lock is constructed of a nickel plated hardened steel locking rod with a diecast bracket and keeper with a chrome plated finish. It’s strong and durable, sure to last, and installation is quick and easy. All installation fasteners are included, and it is designed to secure to door to the jamb. Exercise caution when mounting on glass panel doors not to damage your glass panel.

Review: Works perfectly and easy to install. Very solid and simple option and have now installed 2 others for friends.
Review: Produto com ótima qualidade

## Features

- N/A
- Imported
- SECONDARY SECURITY LOCKING DEVICE – This U 9846 Patio Sliding Door Loop Lock can be used on a patio sliding door as a secondary security lock for increased home safety
- CHILD-SAFE SECURITY DEVICE - This door loop lock can also be installed out of reach of children so they cannot open the door by themselves, providing additional child-safe door security
- EASY INSTALLATION - Installation is quick and easy – additional security for your home or office doors are within reach! Installation fasteners are included; DURABLE CONSTRUCTION – This door loop lock has a hardened steel locking bar with diecast constructed mounting plate and keeper, with a nickel plated finish; PRODUCT INFO - This locking device features a 1-1/8” reach, which is designed to secure the door to the jamb

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BEZW8KU |
| Best Sellers Rank | #254,499 in Home Improvement ( See Top 100 in Home Improvement ) #513 in Dead Bolts |
| Country of Origin | USA |
| Item Dimensions LxWxH | 32 x 32 x 508 Millimeters |
| Item Weight | 132 g |
| Item model number | U 9846 |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Net Quantity | 1.0 Count |
| Product Dimensions | 3.18 x 3.18 x 50.8 cm; 131.54 g |

## Product Details

- **Brand:** Prime-Line
- **Special Feature:** Easy to Install
- **Lock Type:** Key Lock
- **Item dimensions L x W x H:** 32 x 32 x 508 Millimeters
- **Material:** Steel, Nickel

## Images

![Defender Security U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8” Hardened Steel Bar with Diecast Base, Nickel Plated - Image 1](https://m.media-amazon.com/images/I/511xmGzwRwL.jpg)
![Defender Security U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8” Hardened Steel Bar with Diecast Base, Nickel Plated - Image 2](https://m.media-amazon.com/images/I/51plYvanieL.jpg)
![Defender Security U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8” Hardened Steel Bar with Diecast Base, Nickel Plated - Image 3](https://m.media-amazon.com/images/I/61kOFVw8dlL.jpg)
![Defender Security U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8” Hardened Steel Bar with Diecast Base, Nickel Plated - Image 4](https://m.media-amazon.com/images/I/61W9g4o+HxL.jpg)

## Questions & Answers

**Q: What are the dimensions of the pieces that attach to the door/wall?  I have a piece of trim to work with that is only 3/4" wide.**
A: I have about 3/4 of an inch to work with also. These did not work for me. The mounting brackets are an inch in width. I am curious if you have found another brand that has a narrower mounting bracket?

**Q: Does this come in brass or antiqued (I'm trying to find something to match what's in my motorhome)?**
A: You can always spray paint it

**Q: Do these help prevent the door from being lifted out of the track by a theif?**
A: This will not prevent the door from being lifted out of the track. Please review item S 4012.

**Q: I plan to install the inactive member to the door stop and the active member to the edge of the door. Will it work like I’ve described?**
A: There is a video clip and an instruction info on how to install. Careful for getting close to the glass if it is a sliding glass door

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***. on 23 December 2022*

Works perfectly and easy to install. Very solid and simple option and have now installed 2 others for friends.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 23 January 2026*

Produto com ótima qualidade

### ⭐⭐⭐⭐⭐ Review
*by Y***O on 13 September 2017*

Brilliant piece of engineering, some one really thought it out. We live in the UK and discovered these in the US, they work really well on ordinary doors that open outwards. Being stainless steel they look good and are extremely strong. We used them on connecting house to garage door and house to conservatory doors. They are easy to fit and reasonably priced. Well done Prime-Line. Oh and they arrived speedily from the US to UK.

## Frequently Bought Together

- Prime-Line U 9846 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 1-1/8 In. Hardened Steel Bar with Diecast Base, Nickel Plated (Single Pack)
- Prime-Line U 9847 Patio Sliding Door Loop Lock – Increase Home Security, Install Additional Child-Safe Security, 2-1/8 In. Hardened Steel Bar with Diecast Base, Chrome Plated (Single Pack)
- SDGINA Sliding Door Security Lock - Sliding Patio Door Lock for Glass Doors, Child Safety Foot Locks (Sliding Glass Door Lock, 1, Count)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-22*