---
product_id: 17422420
title: "Prime-Line S 4180 Door Knob Lock-Out Device – Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More – Keyed Alike, Diecast, Gray (Single Pack)"
brand: "prime-line"
price: "A$32"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/17422420-prime-line-s-4180-door-knob-lock-out-device-prevents
store_origin: AU
region: Australia
---

# Fits knobs up to 2.45" diameter Keyhole access blocked Durable diecast metal Prime-Line S 4180 Door Knob Lock-Out Device – Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More – Keyed Alike, Diecast, Gray (Single Pack)

**Brand:** prime-line
**Price:** A$32
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock out the unwanted—keep control without the hassle!

## Quick Answers

- **What is this?** Prime-Line S 4180 Door Knob Lock-Out Device – Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More – Keyed Alike, Diecast, Gray (Single Pack) by prime-line
- **How much does it cost?** A$32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/17422420-prime-line-s-4180-door-knob-lock-out-device-prevents)

## 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

- • **Snap-On Simplicity:** Easy to install and remove with secure O-ring locking mechanism
- • **Rugged Diecast Durability:** Built to last with weather-resistant metal for indoor use
- • **Ultimate Keyhole Lockdown:** Blocks unauthorized key access without replacing your door hardware
- • **Versatile Security Solution:** Ideal for rentals, evictions, job sites, and office storage rooms
- • **Universal Fit for Standard Knobs:** Fits rounded doorknobs up to 2-7/16 inches in diameter

## Overview

The Prime-Line S 4180 Door Knob Lock-Out Device is a weather-resistant, diecast metal security accessory designed to cover and block access to the keyhole of standard rounded doorknobs up to 2.45 inches in diameter. It prevents unauthorized unlocking by other keyholders without replacing the entire lock, making it perfect for rentals, evictions, job sites, and secure office storage. Featuring a removable cylinder secured by an O-ring, it offers easy cleaning and reliable protection in a sleek gray finish.

## Description

4180 Door Knob Lock-Out Device – Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More – Keyed Alike, Diecast, Gray (Single Pack)

## Features

- DOORKNOB LOCK-OUT DEVICE – The Defender Security doorknob lock-out device can be placed directly over the entry doorknob to block access to the keyhole. Note: Measure your door's handle diameter to ensure it will fit inside the lock-out device.
- COVERS KEYHOLE – This doorknob security device is designed to keep the keyhole on the locked entry doorknob from being accessed, not the handle from being turned, effectively keeping other keyholders out.
- REMOVABLE – The durable diecast cylinder is held in place with an O-ring and is removable for cleaning when the device is unlocked and open. The cylinder cannot be removed when the device is closed and locked.
- DIMENSIONS – This lock-out device can protect rounded doorknobs that have a max diameter of 2-7/16 inch. Note that the shaft cut-out is circular in shape and measures 1-3/16 inch, so it may fit loosely over doorknobs with smaller diameter slender shafts.
- APPLICATIONS – This lock-out device is often used in evictions, rentals, home sales, on job sites, in-home, in-office storage knobs and more. It is used in situations where you want to prevent other keyholders from accessing the keyhole to unlock
- NOTE - Look for the keys inside the lock-out device as the may shift around during transportation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Diecast |
| Brand | PRIME-LINE |
| Color | Gray |
| Product Dimensions | 2.45"L x 4.2"W |
| Exterior Finish | Gray |
| Specific Uses For Product | specific_uses_for_product |
| Special Feature | Weather Resistant |
| Included Components | Lock And Key |
| Lock Type | Key Lock |
| Theme | Christmas |
| Item Weight | 0.01 Ounces |
| Metal Type | metal_type |
| Handle Material | Diecast Metal |
| Customer Package Type | 1 |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Item Depth | 3.75 inches |
| Handle Attachment Mechanism | Snap-on/Press-fit |
| UPC | 049793041807 |
| Indoor/Outdoor Usage | Indoor |
| Part Number | S 4180 |
| Item Weight | 0.01 ounces |
| Item model number | S 4180 |
| Is Discontinued By Manufacturer | No |
| Size | 1 Pack |
| Finish | Gray |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Special Features | Weather Resistant |
| Batteries Included? | No |
| Batteries Required? | No |
| 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. |

## Product Details

- **Material:** Diecast
- **Brand:** PRIME-LINE
- **Color:** Gray
- **Product Dimensions:** 2.45"L x 4.2"W
- **Exterior Finish:** Gray

## Images

![Prime-Line S 4180 Door Knob Lock-Out Device – Prevents Turning of Door Knob and Access to Keyhole, Can be Used for Home Rentals, Evictions, Job Sites & More – Keyed Alike, Diecast, Gray (Single Pack) - Image 1](https://m.media-amazon.com/images/I/610q+606c-L.jpg)

## Available Options

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

## Frequently Bought Together

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-25*