---
product_id: 3454131
title: "U 9972 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Double Cylinder (Single Pack)"
brand: "prime-line"
price: "₩69791"
currency: KRW
in_stock: true
reviews_count: 13
url: https://www.desertcart.kr/products/3454131-u-9972-jimmy-resistant-deadlock-diecast-brass-color-angle-strike
store_origin: KR
region: South Korea
---

# Double-cylinder keyed security Easy surface-mount installation Jimmy-resistant anti-pry design U 9972 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Double Cylinder (Single Pack)

**Brand:** prime-line
**Price:** ₩69791
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in peace of mind with style and strength!

## Quick Answers

- **What is this?** U 9972 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Double Cylinder (Single Pack) by prime-line
- **How much does it cost?** ₩69791 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/3454131-u-9972-jimmy-resistant-deadlock-diecast-brass-color-angle-strike)

## 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

- • **Complete Security Kit:** Includes lock body, angle strike, 2 keys, tamper-resistant shutter guard, and mounting hardware for a seamless upgrade.
- • **Timeless Brass Finish:** Corrosion-resistant diecast brass plating adds a classic, upscale look that stands out on any entry door.
- • **Dual-Sided Key Control:** Double-cylinder design offers secure access from both sides, perfect for managing entry with confidence.
- • **Effortless Installation:** Surface-mounted lock fits doors 1-3/8" to 2-3/8" thick, install quickly with common tools—no major door modifications needed.
- • **Robust Anti-Forced Entry:** Jimmy-resistant cross-bolt mechanism prevents door frame spreading and prying, elevating your home’s defense.

## Overview

The Prime-Line U 9972 Jimmy-Resistant Deadlock is a durable, surface-mounted double-cylinder lock designed to secure hinged entry doors from 1-3/8" to 2-3/8" thick. Featuring a corrosion-resistant brass finish and a jimmy-resistant cross-bolt mechanism, it prevents forced entry by prying or door frame spreading. Easy to install with common tools, it includes all necessary hardware and two keys, making it an ideal upgrade for enhanced residential security.

## Description

Product Description Enhance entry door security with the Prime-Line U 9972 Jimmy-Resistant Deadlock. Designed to help protect against forced-entry attempts, this surface-mounted deadlock features a proven jimmy-resistant design that helps prevent door frame spreading, prying, and other common break-in methods. Ideal for residential entry doors, this lock provides an added layer of security without requiring extensive door modifications. Constructed from durable diecast metal with a corrosion-resistant brass-colored finish, this deadlock is built for long-lasting performance and classic appearance. The surface-mounted cross-bolt locking mechanism helps secure the door firmly to the jamb for increased resistance against physical attack. A tamper-resistant shutter guard helps protect the keyway from debris and discourages tampering, while the double-cylinder design provides keyed operation from both sides of the door for controlled access. Designed for use on wood, metal, and resin doors measuring 1-3/8 in. to 2-3/8 in. thick, this deadlock installs using common hand tools and included mounting hardware. The complete kit includes the lock body, angle strike, keys, and installation components, making it an excellent solution for door security upgrades and replacement applications. Review door dimensions and installation requirements before purchasing to ensure compatibility. From the Manufacturer This double cylinder deadlock is constructed of diecast and it comes in a brass colored finish. It features a jimmy-resistant design which prohibits forced entry when attempts are made to spread the door away from the frame. This is a surface-mounted, cross-bolt locking device which can be mounted to 1-3/8 in. to 2-3/8 in. thick, wood or metal doors. This door lock includes an angled strike, a rim cylinder, 2 keys, a cylinder trim ring, fasteners, a mounting plate, instructions and a tamper-resistant shutter guard. This lock requires a 1-1/4 in. hole and uses Segal keyway. It is keyed differently, but it is also available keyed alike via special order from manufacturer. See Prime-Line's model number U 9970 for a single cylinder deadlock, or model number U 9971 for the single cylinder deadlock in a white painted finish.

## Features

- Components are constructed of diecast and steel and materials
- Comes in a beautiful, corrosion resistant, brass plated color
- Designed for use with hinged entry doors, but can be used on other doors where a secure locking device is desired
- Features a spring loaded mechanism
- Easy to install with only a few simple tools
- Used to prohibit forced entry by spreading of door frames
- Installs on doors from 1-3/8 in. to 2-3/8 in. thick
- Brass painted color
- Constructed of diecast

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Additional Features | Scratch-Resistant |
| Asin | B000BD8ISW |
| Best Sellers Rank | #121,203 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #394 in Deadbolts |
| Brand Name | PRIME-LINE |
| Color | Brass |
| Controller Type | Ring |
| Customer Reviews | 4.2 4.2 out of 5 stars (516) 4.2 out of 5 stars |
| Finish Types | Brass |
| Global Trade Identification Number | 00049793099723 |
| Included Components | Deadlock, keeper, 2 keys and fasteners |
| Item Dimensions | 1 x 4.31 x 2.87 inches |
| Item Type Name | Prime-Line U 9972 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Double Cylinder (Single Pack) |
| Item Weight | 0.27 g |
| Lock Type | Key Lock |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Manufacturer Part Number | U 9972 |
| Manufacturer Warranty Description | Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse. |
| Material Type | Diecast |
| Model Name | Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Double Cylinder |
| Model Number | U 9972 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Number Of Pieces | 1 |
| Recommended Uses For Product | Securing hinged entry doors and preventing forced entry on doors from 1-3/8 in. to 2-3/8 in. thick |
| Shape | D Shape |
| Style Name | Double Cylinder |
| Unit Count | 1 Count |
| Upc | 049793099723 |

## Product Details

- **Brand:** PRIME-LINE
- **Item dimensions L x W x H:** 1 x 4.31 x 2.87 inches
- **Lock Type:** Key Lock
- **Material:** Diecast
- **Special Feature:** Scratch-Resistant

## Images

![U 9972 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Double Cylinder (Single Pack) - Image 1](https://m.media-amazon.com/images/I/71XX6kh8X-L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fist Exactly Where the Old Lock Was
*by  on Reviewed in the United States January 2, 2025*

My Dad installed this lock at least 20 years ago. It finally quit working. The cylinder would turn but the locking mechanism would not engage. It was not available locally at the 3 places I checked so I went to Amazon to get it. It is just like the old one and fits exactly. This made it easy for me to install with no problems. The door is 70 years old. If this new lock quits working, I will probably have to replace the door instead of the lock. Glad I found it on Amazon, and really glad the style has not changed since my Dad bought the first one. Recommend it for durability and safety. If you are installing it on a door that has never had a lock like this, it will be more complicated. I am not that skilled. The instruction are very clear and explain how to do it, and templates are included.

### ⭐⭐⭐⭐⭐ Solid Look, Easy To Install
*by  on Reviewed in the United States November 24, 2025*

Very solid easy to install lock. Heavy duty this was easy to install, it fit the doorframe perfectly and it functions as it should. Great lock, great price!

### ⭐⭐⭐⭐⭐ Good but better suited for utility room than front door
*by  on Reviewed in the United States June 5, 2024*

Replaced one just like it that was at least 15 year old. Using it on a very old and lightweight door that‘s too thin to take a deadbolt assembly. This is a reliably built, jimmy-proof surface lock. I don’t believe it’s as stout as a deadbolt. But it does a fine job on a door that anyone could easily blow through regardless of which lock was on the door. Probably better suited for a utility room than the front door of your house.

## Frequently Bought Together

- Prime-Line U 9972 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Double Cylinder (Single Pack)
- Rocky Mountain Goods Jimmy Proof Lock Deadbolt Lock - Heavy Duty Safety Deadbolt - Easy Install - Double Cylinder Locking - Shutter Guard

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**Shop now:** [https://www.desertcart.kr/products/3454131-u-9972-jimmy-resistant-deadlock-diecast-brass-color-angle-strike](https://www.desertcart.kr/products/3454131-u-9972-jimmy-resistant-deadlock-diecast-brass-color-angle-strike)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-09-30*