---
product_id: 730805180
title: "Prime-Line Products U 9551 Lock & Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed by Prime-Line Products"
brand: "prime-line"
price: "€ 10.36"
currency: EUR
in_stock: false
url: https://www.desertcart.sk/products/730805180-prime-line-products-u-9551-lock-and-door-reinforcer-2
store_origin: SK
region: Slovakia
---

# Fits standard 2-1/8" bore & 1-3/4" doors Stainless steel strength Quick slip-on install Prime-Line Products U 9551 Lock & Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed by Prime-Line Products

**Brand:** prime-line
**Price:** € 10.36
**Availability:** ❌ Out of Stock

## Summary

> 🔐 Lock down your security in minutes — because your peace of mind can’t wait!

## Quick Answers

- **What is this?** Prime-Line Products U 9551 Lock & Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed by Prime-Line Products by prime-line
- **How much does it cost?** € 10.36 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/730805180-prime-line-products-u-9551-lock-and-door-reinforcer-2)

## 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

- • **Durable Armor:** Stamped stainless steel resists wear and tampering
- • **Precision Fit:** Designed for 1-3/4" thick doors with 2-1/8" bore and 2-3/8" backset
- • **Effortless Upgrade:** Easy slip-on design with included hardware for fast installation
- • **Fortify Your Frontline:** Reinforces weak door points to prevent forced entry
- • **Universal Compatibility:** Works with mortise or drive-in latches, key-in knob sets, and deadbolts

## Overview

The Prime-Line U 9551 Lock & Door Reinforcer is a robust stainless steel security upgrade designed to strengthen 1-3/4" thick doors with standard 2-1/8" bore holes. Featuring a quick slip-on installation and compatibility with various latch types, it effectively fortifies vulnerable door areas to help prevent forced entry, making it an essential addition for any security-conscious homeowner.

## Description

The stainless steel locks and door reinforcements secure the weak points of your front door to enhance home security and help prevent forced entry Installation is quick and easy and includes all zippers - additional security and security in just minutes. This combo lock and door reinforcement can be used on 1-3/4" thick wood or metal doors with mortise or drive-in latches. It can also be installed with a 2-1/8" bore size key-in noblock set or deadbolt. Backset is 2-3/8" This door guard measures 3-7/8" wide and 9-7/8" high.

## Features

- Used for reinforcing and repairing doors to help prevent forced entry
- 1-3/4" thick door, 2-1/8" Hole 2-3/8" Backset, 3-7/8" 9" wide H
- Features a latch assembly area with mortise holes
- Stamped Stainless Steel
- Easy slip-on design
- Fits 2-1/8" key-in block sets or deadbolt boa
- Stainless Steel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Prime-Line |
| Model Number | U 9551 |
| Product Dimensions | 9.84 x 4.45 x 22.86 cm; 362.87 g |
| Color | stainless steel |
| Material | Alloy Steel |
| Quantity | 1 |
| Included Components | Lock and door reinforcement |
| Are Batteries Included | No |
| Item Weight | 363 g |

## Product Details

- **Brand:** Prime-Line
- **Item dimensions L x W x H:** 9.8 x 4.4 x 22.9 cm
- **Material:** Alloy Steel
- **Color:** stainless steel
- **Number of Pieces:** 1

## Images

![Prime-Line Products U 9551 Lock & Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed by Prime-Line Products - Image 1](https://m.media-amazon.com/images/I/51LsMoYoR9L.jpg)
![Prime-Line Products U 9551 Lock & Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed by Prime-Line Products - Image 2](https://m.media-amazon.com/images/I/61pBpl6nweL.jpg)
![Prime-Line Products U 9551 Lock & Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed by Prime-Line Products - Image 3](https://m.media-amazon.com/images/I/61UJR6yOy5L.jpg)
![Prime-Line Products U 9551 Lock & Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel, Recessed by Prime-Line Products - Image 4](https://m.media-amazon.com/images/I/71UrKVyEOrL.jpg)

## Frequently Bought Together

- Prime-Line U 9551 Stainless Steel Lock and Door Reinforcement Plate for 1-3/4 In. Thick Doors, Stainless Steel Finish (Single Pack)
- Prime-Line U 9476 Maximum Security Latch Strike, 1-1/4 In. x 7-7/8 In., Steel, Chrome Plated (Single Pack)
- Prime-Line U 9585 Stainless Steel Lock and Door Reinforcement Plate for 1-3/8 In. Thick Doors, Stainless Steel Finish (Single Pack)

---

## 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.sk/products/730805180-prime-line-products-u-9551-lock-and-door-reinforcer-2](https://www.desertcart.sk/products/730805180-prime-line-products-u-9551-lock-and-door-reinforcer-2)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-02*