---
product_id: 253745411
title: "Defender Security Swing Bar Door Guard With High Security Auxiliary Lock, Satin Nickel Finish, 1-Pack, U 11316"
brand: "defender security"
price: "HK$331"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/253745411-defender-security-swing-bar-door-guard-with-high-security-auxiliary
store_origin: HK
region: Hong Kong
---

# Child-safe, tamper-resistant spring lock 3-inch hardened screws 800 lbs. force resistance Defender Security Swing Bar Door Guard With High Security Auxiliary Lock, Satin Nickel Finish, 1-Pack, U 11316

**Brand:** defender security
**Price:** HK$331
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in safety, unlock peace of mind.

## Quick Answers

- **What is this?** Defender Security Swing Bar Door Guard With High Security Auxiliary Lock, Satin Nickel Finish, 1-Pack, U 11316 by defender security
- **How much does it cost?** HK$331 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/253745411-defender-security-swing-bar-door-guard-with-high-security-auxiliary)

## 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

- • **Unmatched Strength:** Engineered to withstand up to 800 lbs. of force, this door guard stops intruders in their tracks.
- • **Family-Friendly Safety:** Spring-loaded design installed out of children’s reach ensures tamper resistance and peace of mind.
- • **Sleek Satin Nickel Finish:** Modern, durable zinc construction with a stylish satin nickel finish that complements any door.
- • **Swift & Secure Installation:** Includes 3-inch hardened screws for a quick, hassle-free setup that locks down your home in minutes.
- • **Universal Fit for Swing-In Doors:** Compatible with any door thickness, providing versatile, high-security reinforcement wherever you need it.

## Overview

The Defender Security Swing Bar Door Guard (U 11316) is a heavy-duty, zinc-made auxiliary lock with a satin nickel finish, designed to reinforce swing-in doors against forced entry. Withstanding up to 800 lbs. of force and featuring a child-safe, tamper-resistant spring mechanism, it installs easily using included hardened screws. Ideal for professionals seeking reliable, stylish home security upgrades.

## Description

Defender Security Swing Bar Door Guard With High Security Auxiliary Lock, Satin Nickel Finish, 1-Pack, U 11316

## Features

- KEEP YOUR HOME SAFE – Designed to withstand 800 lbs. of force, this U 10827 satin nickel finish door reinforcement lock helps to prevent doors from being kicked in, increasing your home security and keeping you and your family safe!.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.
- EASY INSTALLATION – The included 3 in. hardened screws make installation a breeze – extra security and peace of mind can be achieved in just minutes. Length is 2 to 0.19 inch. Width is 1 to 0.38 inch.
- ADDITIONAL HOME SECURITY - Use this high security door reinforcement lock for additional home security on any swing-in door of any door thickness. It helps to ensure any door cannot be opened from the outside.
- CHILD-SAFE AND TAMPER-RESISTANT – This Defender Security door blocker by Prime-Line has a spring-loaded design that is both child-safe and tamper-resistant. It can be installed higher on the door where your children can’t reach!
- PRE-DRILLING – The included 3 in. security screws require holes to be pre-drilled with 1/8 in. drill bit.
- NOTE - Please refer to the line art for dimensions and compare with your needs before purchasing.
- WATCH THE VIDEOS ON THIS PAGE for installation and operating tips.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Prime-Line |
| Part number | U 11316 |
| Item Weight | 254 g |
| Product Dimensions | 10.69 x 3.18 x 6.32 cm; 254.01 g |
| Item model number | U 11316 |
| Size | 1 Pack |
| Color | Satin Nickel |
| Style | Door Guard |
| Finish | nickel finish |
| Material | Zinc |
| Shape | Semicircular |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Plug Profile | Door Mount |
| Special Features | Heavy Duty |
| Included components | door guard, fasteners |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Defender Security
- **Special features:** Heavy Duty
- **Lock type:** Auxiliary
- **Item dimensions L x W x H:** 10.7 x 3.2 x 6.3 centimeters
- **Material:** Zinc

## Images

![Defender Security Swing Bar Door Guard With High Security Auxiliary Lock, Satin Nickel Finish, 1-Pack, U 11316 - Image 1](https://m.media-amazon.com/images/I/715A5Fs6OAL.jpg)

## Available Options

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

## Questions & Answers

**Q: Why wouldn't this work on an outswinging door?**
A: If it is placed in the interior, you will be able to open the door and go out.  If it is placed on the outside of the house, people would be locked inside as it could only be opened from the outside.  If you are putting this on a shed or a cupboard, for example, then locking it from the outside would be fine.

**Q: Can this be used on double entry doors?**
A: It is designed for a single door installation and is not advised for your use. The base plate have  longer screws that could be too long for the inactive door it is mounted to.

**Q: Will this latch affect pre-installed alarm sensors? We wouldn’t want the alarm to accidentally be triggered by it!**
A: The alarm system sensor is usually installed at the top of a door that is ~6’6” and the latch can be installed beloe the 5’ mark to allow unhindered visibility.  That leaves more than 18” of clearance to ensure that the sensor is not affected. 

If I’m not mistaken, the sensor on the jam senses a magnet on the door. If steel affected these sensors then they could never be installed on steel doors. This latch has no magnetic components, so the likelihood of interference is abysmally low.

**Q: Will this latch a door completely closed? I want to latch pull-down cabinets built into a ceiling (sort of like overhead bins on a plane).**
A: It is designed to slide open so it will not keep the door completely closed.

## Frequently Bought Together

- Prime-Line U 11316 Swing Bar Door Guard With High Security Auxiliary Lock, Satin Nickel Finish (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)
- Home Security Door Lock, 2 Pack Childproof Door Reinforcement Lock with 3 Inch Stop Withstand 800 lbs for Top Front Inward Swinging Door, Upgrade Flip High Night Lock to Defend Your Home Kids

---

## 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.hk/products/253745411-defender-security-swing-bar-door-guard-with-high-security-auxiliary](https://www.desertcart.hk/products/253745411-defender-security-swing-bar-door-guard-with-high-security-auxiliary)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-04*