---
product_id: 27207082
title: "Prime-Line U 9913 Chain Door Guard – Door Chain Lock for Door and Home Security, 3-5/16”, Solid Brass Construction and an Antique Finish (Single Pack)"
brand: "defender security"
price: "€ 28.45"
currency: EUR
in_stock: false
reviews_count: 12
url: https://www.desertcart.gr/products/27207082-prime-line-u-9913-chain-door-guard-door-chain-lock
store_origin: GR
region: Greece
---

# 3-5/16” solid brass lock body 6-inch, 8-link welded steel chain Easy install with included fasteners Prime-Line U 9913 Chain Door Guard – Door Chain Lock for Door and Home Security, 3-5/16”, Solid Brass Construction and an Antique Finish (Single Pack)

**Brand:** defender security
**Price:** € 28.45
**Availability:** ❌ Out of Stock

## Summary

> ⛓️ Lock in safety and style—because your home deserves the best guard! 🔒

## Quick Answers

- **What is this?** Prime-Line U 9913 Chain Door Guard – Door Chain Lock for Door and Home Security, 3-5/16”, Solid Brass Construction and an Antique Finish (Single Pack) by defender security
- **How much does it cost?** € 28.45 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/27207082-prime-line-u-9913-chain-door-guard-door-chain-lock)

## 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

- • **Versatile Fit:** Compact 3-5/16” size fits various door types and can be mounted over or beside door casings.
- • **Effortless Setup:** Quick, hassle-free installation with all necessary fasteners included—security within reach.
- • **Secure Your Sanctuary:** Solid extruded brass with an elegant antique finish ensures lasting durability and timeless style.
- • **Child-Safe Peace of Mind:** Install out of reach to prevent children from opening the door independently.
- • **Controlled Access, Always:** Allows door to open slightly for safe viewing and ventilation without compromising security.

## Overview

The Prime-Line U 9913 Chain Door Guard is a robust security device crafted from solid extruded brass with an antique finish, featuring a 6-inch, 8-link welded steel chain. Designed for easy installation with included fasteners, it allows safe door ventilation while preventing unauthorized entry and child access. Compact and versatile, it fits multiple door types, delivering reliable, stylish home or office security.

## Description

Increase the safety and security of your home or office with the Prime-Line U 9913 Chain Door Guard Lock, a reliable solution designed to let you partially open your door while maintaining control and protection. This classic chain-style lock allows for secure viewing and ventilation without fully opening the door, giving you added peace of mind when answering unexpected visitors. Ideal for both residential and light commercial use, this door guard also provides an extra layer of child safety when installed higher on the door, helping prevent children from opening doors unattended. Its versatile design allows it to be installed over or alongside the door casing, making it compatible with a wide variety of door types and configurations. Constructed from durable solid brass, this door guard offers long-lasting strength with a timeless antique brass finish that complements many interior styles. The included 6-inch, 8-link welded steel chain adds dependable resistance and durability, ensuring secure engagement while still allowing limited door movement when needed. The chain housing measures 3-5/16 inches, providing a compact yet effective footprint. Installation is quick and straightforward, with all necessary fasteners included, making this a convenient DIY upgrade for improving door security. Whether you are looking to enhance entryway safety, add an extra layer of protection, or improve childproofing, this chain door guard is a practical and dependable choice. Overall, the Prime-Line U 9913 Chain Door Guard Lock combines durability, ease of use, and classic design, making it an effective solution for controlled door access and everyday security.

Review: It’s good - It’s good and decent for the price .
Review: Great, Sturdy Product - Good looking, super sturdy, smooth moving chain. Pretty easy to install, the problems I had with installation were related more to the material of my door frame and door, not the actual security chain.

## Features

- SECURITY LOCKING DEVICE – This U 9913 Chain Door Guard is a security locking device for doors, allowing a door to be slightly opened to allow safe viewing and ventilation.
- CHILD-SAFE SECURITY DEVICE – This door chain 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 chain door guard is constructed of extruded brass with an antique finish and a 6”, 8-link welded steel chain. It’s strong and durable and sure to last.
- PRODUCT INFO – The 3-5/16” U 9913 Chain Door Guard can be used on a variety of door types and can be placed over or beside door casing. It features a 6-inch long, 8-link welded steel chain and all installation fasteners necessary for complete install.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000RY6RQU |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #152,579 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #448 in Door Lock Replacement Parts |
| Color | Antique Brass |
| Customer Reviews | 4.5 4.5 out of 5 stars (321) |
| Date First Available | September 9, 2006 |
| Finish | Antique Brass |
| Included Components | lock, keeper and fasteners |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 4.6 ounces |
| Item model number | U 9913 |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Material | Brass |
| Part Number | U 9913 |
| Product Dimensions | 3.31 x 3.31 x 2 inches |
| Size | 3-5/16 in. |
| Warranty Description | Goods are warranted against manufacturing defects for 1 year. |

## Images

![Prime-Line U 9913 Chain Door Guard – Door Chain Lock for Door and Home Security, 3-5/16”, Solid Brass Construction and an Antique Finish (Single Pack) - Image 1](https://m.media-amazon.com/images/I/61hwuT41w5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ It’s good
*by A***L on September 3, 2025*

It’s good and decent for the price .

### ⭐⭐⭐⭐⭐ Great, Sturdy Product
*by A***. on July 5, 2021*

Good looking, super sturdy, smooth moving chain. Pretty easy to install, the problems I had with installation were related more to the material of my door frame and door, not the actual security chain.

### ⭐⭐⭐⭐⭐ Pretty lock
*by C***1 on February 24, 2026*

Goes with the hardware in our old 100 year old home. Needed to be able to lock our basement door high up from our toddler so she wouldn’t fall down the steps. Our old doorknobs don’t lock so this was a good solution not having to switch out our pretty glass knobs

## Frequently Bought Together

- Prime-Line U 9913 Chain Door Guard – Door Chain Lock for Door and Home Security, 3-5/16”, Solid Brass Construction and an Antique Finish (Single Pack)
- Prime-Line U 10533 Antique Brass Chain Door Guard (Single Pack)
- Prime-Line U 9899 Swing Bar Lock for Hinged Swing-In Doors – Secondary Security Lock for Door & Security, 3-7/8” Bar Length, Diecast Zinc Construction w/ Antique Brass Finish (Single Pack)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-08*