---
product_id: 7636453
title: "Prime-Line U 9970 Deadlock – Jimmy-Resistant Design Prohibits Forced Entry by Spreading of Door Frames – Single Cylinder Diecast Metal Lock With a Brass Finish and Angle Strike (Single Pack)"
brand: "prime-line"
price: "¥10549"
currency: JPY
in_stock: true
reviews_count: 13
category: "Prime Line"
url: https://www.desertcart.jp/products/7636453-prime-line-u-9970-deadlock-jimmy-resistant-design-prohibits-forced
store_origin: JP
region: Japan
---

# Jimmy-resistant cross-bolt lock Surface-mounted, easy install Durable diecast metal brass finish Prime-Line U 9970 Deadlock – Jimmy-Resistant Design Prohibits Forced Entry by Spreading of Door Frames – Single Cylinder Diecast Metal Lock With a Brass Finish and Angle Strike (Single Pack)

**Brand:** prime-line
**Price:** ¥10549
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Prime-Line U 9970 Deadlock – Jimmy-Resistant Design Prohibits Forced Entry by Spreading of Door Frames – Single Cylinder Diecast Metal Lock With a Brass Finish and Angle Strike (Single Pack) by prime-line
- **How much does it cost?** ¥10549 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/7636453-prime-line-u-9970-deadlock-jimmy-resistant-design-prohibits-forced)

## 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

- • **Tailored Fit:** Customizable tailpiece length for perfect lock performance on your door.
- • **Effortless Setup:** Includes template & instructions for quick install on wood or metal doors 1-3/8” to 2-3/8” thick.
- • **Premium Durability:** Diecast metal with brass finish ensures long-lasting protection and style.
- • **Complete Locking Kit:** Comes with angled strike, rim cylinder, 2 keys, shutter guard & mounting hardware.
- • **Unbreakable Security:** Jimmy-resistant design stops forced entry by spreading door frames.

## Overview

The Prime-Line U 9970 Deadlock is a single-cylinder, surface-mounted cross-bolt lock designed to prevent forced entry by spreading door frames. Crafted from durable diecast metal with a brass finish, it fits wood or metal doors 1-3/8” to 2-3/8” thick and includes all necessary hardware for easy installation. Its jimmy-resistant design and tamper-resistant shutter guard provide enhanced security, making it an ideal choice for both residential and commercial use.

## Description

Product Description The Prime-Line U 9970 deadlock offers a secure lock solution to protect your home with its jimmy-resistant design, which prevents forced entry by spreading door frames. This keyed lock features a surface-mounted, cross-bolt design that ensures robust security while maintaining ease of use. Ideal for residential and commercial doors. Made from premium materials, this diecast lock with a brass-colored finish delivers long-lasting durability and a sleek appearance, enhancing both security and style. Comes with all mounting hardware, including an angled strike, rim cylinder, trim ring, and shutter guard, making it simple to install on wood or metal doors 1-3/8 inch to 2-3/8 inch thick. Requires a 1-1/4 in. hole and uses a Segal keyway. For further dimensional information, please see the line drawing and compare it with your needs before purchasing. From the Manufacturer This single 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 9972 for a double cylinder deadlock, or model number U 9971 for the single cylinder deadlock in a white painted finish. Single cylinder deadlock is also available in satin nickel finish; model number U 10817.

Review: Solid Look, Easy To Install - 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!
Review: Easy to install - Awesome lock! I feel so safe.

## Features

- PROHIBIT FORCED ENTRY – Use our strong, durable deadlock, featuring a jimmy-resistant design, to prohibit forced entry by the spreading of door frames. It provides added security to your home by securing your door to its jamb and includes a tamper-resistant shutter guard to deter unwanted entry. Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit
- EASY INSTALLATION –The use of included instructions and template ensures a quick and easy installation. The deadlock is a surface-mounted, cross-bolt locking device which can be mounted to 1-3/8” to 2-3/8” thick, wood or metal doors. It can be installed inside or outside, on left- or right-hinged doors.
- DURABLE CONSTRUCTION – Constructed of diecast metal with a brass-colored finish, this single cylinder deadbolt is strong, high quality and durable, giving you peace of mind that your home will remain protected against intruders.
- INCLUDES - This door lock includes an angled strike, a rim cylinder, two keys (keyed differently), a cylinder trim ring, fasteners, a mounting plate, instructions and a tamper-resistant shutter guard. This lock requires a 1-1/4” hole and uses Kwikset keyway.
- INSTALLATION TIP - Snap-off or cut-off end sections of tailpiece as needed, if it is too long for your door. Having the tailpiece too long can negatively affect the performance of the lock. Use pliers to snap-off, a hacksaw or small disk to cut-off, and a file to remove sharp edges and burrs. Position the deadbolt mounting plate on the inside of the door with raised side facing the outside of door to ensure flush installation of inside lock assembly.
- For all dimensional information please refer to the line art and compare to your needs before purchasing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BDB4Q0 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #21,436 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #119 in Deadbolts |
| Brand | PRIME-LINE |
| Color | Brass |
| Control Method | Touch |
| Controller Type | Ring |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,489) |
| Date First Available | February 17, 2007 |
| Finish | Brass |
| Finish Type | Brass |
| Global Trade Identification Number | 00049793099709 |
| Included Components | Deadlock and fasteners |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item dimensions L x W x H | 1 x 4.31 x 2.87 inches |
| Item model number | U 9970 |
| Lock Type | Deadbolt |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Material | Diecast metal |
| Model Name | Deadlock |
| Number of Pieces | 1 |
| Part Number | U 9970 |
| Product Dimensions | 1 x 4.31 x 2.87 inches |
| Recommended Uses For Product | Security |
| Shape | Round |
| Size | 1 Pack |
| Special Feature | Weather Resistant |
| Special Features | Weather Resistant |
| Style | Single Cylinder |
| UPC | 049793099709 |
| Usage | specific_uses_for_product |
| Warranty Description | Goods are warranted against manufacturing defects for 1 year. |

## Product Details

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

## Images

![Prime-Line U 9970 Deadlock – Jimmy-Resistant Design Prohibits Forced Entry by Spreading of Door Frames – Single Cylinder Diecast Metal Lock With a Brass Finish and Angle Strike (Single Pack) - Image 1](https://m.media-amazon.com/images/I/61zs-TCdxUL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the diameter of the hole I need to drill in the door to mount this?**
A: the instructions indicate that you are to drill an inch and one quarter hole in the door.

**Q: Does one need to install the outside key entry component, or can it be used as an inside only night latch?**
A: Yes, instructions are provided for both configurations, inside security latch, or deadbolt style operation.  I used both configurations. Deadbolt for front door, and security latch for inside door to garage.  If using as high security use be sure to use long screws, ones included not long enough to reach internal wall studs for added strength.  Door frame itself not strong enough for high security.

**Q: Can this lock be used on either a left or a right hinged door?**
A: Yes.  I've mounted it both ways.

**Q: What the is minimum thickness of door this lock will work for?**
A: The door thickness required is 1-3/8" to 1-3/4".  So the minimum is 1-3/8".Thank you for your interest in our product.A. JonesTime Warp Toys and More

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid Look, Easy To Install
*by T***� on 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!

### ⭐⭐⭐⭐⭐ Easy to install
*by A***E on December 31, 2025*

Awesome lock! I feel so safe.

### ⭐⭐⭐⭐⭐ good quality
*by E***A on December 23, 2025*

Good quality

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-10*