---
product_id: 15439391
title: "Heavy Duty Disc Padlock [Combination] [Stainless Steel] [Outdoor] M40EURDNUM - Best Used for Storage Units, Sheds, Garages, Trailers and More"
brand: "master lock"
price: "VT15904"
currency: VUV
in_stock: true
reviews_count: 13
category: "Master Lock"
url: https://www.desertcart.vu/products/15439391-heavy-duty-disc-padlock-combination-stainless-steel-outdoor-m40eurdnum-best
store_origin: VU
region: Vanuatu
---

# 10,000 combo possibilities Weather-resistant stainless steel body 50% harder boron carbide shackle Heavy Duty Disc Padlock [Combination] [Stainless Steel] [Outdoor] M40EURDNUM - Best Used for Storage Units, Sheds, Garages, Trailers and More

**Brand:** master lock
**Price:** VT15904
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in ultimate security and never worry about your stuff again!

## Quick Answers

- **What is this?** Heavy Duty Disc Padlock [Combination] [Stainless Steel] [Outdoor] M40EURDNUM - Best Used for Storage Units, Sheds, Garages, Trailers and More by master lock
- **How much does it cost?** VT15904 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/15439391-heavy-duty-disc-padlock-combination-stainless-steel-outdoor-m40eurdnum-best)

## Best For

- master lock enthusiasts

## Why This Product

- Trusted master lock brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unbeatable Security:** Set your own 4-digit combo from 10,000 options for personalized protection.
- • **Cut-Resistant Shackle:** Octagonal boron carbide shackle is 50% harder than hardened steel, minimizing bolt cutter threats.
- • **Lifetime Peace of Mind:** Backed by a limited lifetime guarantee, because your security deserves lasting trust.
- • **Built to Brave the Elements:** Stainless steel body with covered keyway and reinforced bumper resists weather and scratches.
- • **Versatile Outdoor & Indoor Use:** Perfect for storage units, sheds, trailers, garages, and more—wherever security matters.

## Overview

The Master Lock M40EURDNUM Heavy Duty Disc Padlock combines a weather-resistant stainless steel body with a high-security, 50% harder boron carbide shackle and a customizable 4-digit combination lock offering 10,000 unique codes. Designed for both indoor and outdoor use, it’s ideal for securing storage units, sheds, trailers, and more, backed by a limited lifetime guarantee for enduring protection.

## Description

Product Description The Master Lock Excell No. M40EURDNUM solid body padlock features a 70 mm wide stainless steelbody for strength, reliability and corrosion resistance. The 10 mm diameter octagonal shackle is 16 mm long and made of Tough-Cut boron-carbide, 50 percent harder than hardened steel, offering maximum resistance to cutting and sawing. The reinforced body bumper protects against scratches. The lock includes set-your-own combination convenience, with the need of the included reset tool. This padlock is ideal for self storage units, sheds, trailers, moving trucks, vans and more. The limited lifetime warranty provides peace of mind from a brand you can trust. Set Contains: 1 x padlock & reset key

Review: Heavy duty! - Very solid, heavy duty lock. Comes with a key (don't loose it!) to reset the combo when you need to. Number dials are tough to turn, but I take that as a sign of it's robustnesss--if you have weak fingers, maybe not the lock you want.
Review: BE VERY CAREFUL RESETTING THE COMBO! - We purchased this lock for a storage. We followed the instructions. The lock looks strong but it does not work very well the rotating numbers are difficult to line up and you are never sure whether you have them in alignment or not as there is no definitive click even if you are using any set of numbers (you wouldn't want it to be definitive only when you had the correct 4). I used the code behind the key on the back and got the lock to open then I opened the bolt and inserted the little combination key and rotated clockwise then I set the new code. turned the key removed the key after turning it counter clockwise to set the new code closed the bolt and tried to open it with the new code and it didn't work. Then I tried to go back to the original code but it didn't open so then I tried multiple combinations used the new code but changing each dial either up one number or down one number on each code ring. Then I tried adjusting two at number rings at a time using the same methodology and never got it open again. So, it may be operator error but be careful because your will be in trouble. I thought i followed the intructions to a T but no such luck. Then I searched online to see if there was a number to call to try to reset it since I have the original combo and key. No luck.

## Features

- Multiple padlock applications: For indoor and outdoor use; stainless steel discus padlock is ideal used for self storage units, sheds, trailers, moving trucks, vans and more.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit
- Durable design: padlock has a stainless steel body construction and covered keyway for maximum weather resistance, and a reinforced body bumper for scratch resistance
- High security combination: Set-your-own four-digit combination for convenience and security; 10,000 possible combinations
- High security shackle: Tough-Cut octagonal boron carbide shackle that is 50 percent harder than hardened steel and fully shrouded design minimizes shackle exposure and protects against bolt cutter attacks
- Specifications: padlock dimensions (W x D) 7 x 3 cm; shackle (A x B x C) 1 x 1.6 x 2.1 cm; one padlock; reset tool included
- Limited lifetime guarantee

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00HUWZRS6 |
| Best Sellers Rank | #138,219 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #320 in Combination Locks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Silver |
| Control Method | App |
| Controller Type | Hand Control |
| Customer Reviews | 3.6 out of 5 stars 4,566 Reviews |
| Finish Types | Zinc |
| Global Trade Identification Number | 00798256159008 |
| Included Components | 1 padlock |
| Item Dimensions | 3.66 x 2.76 x 1.18 inches |
| Item Type Name | MASTER LOCK High Security Disc Padlock [Combination] [Stainless Steel] [Outdoor] M40EURDNUM - Best Used for Storage Units, Sheds, Garages, Trailers and More |
| Item Weight | 0.31 Kilograms |
| Item dimensions L x W x H | 3.66 x 2.76 x 1.18 inches |
| Lock Type | Combination Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | M40EURDNUM |
| Model Name | Excell Disc padlock |
| Model Number | M40EURDNUM |
| Number of Pieces | 1 |
| Recommended Uses For Product | Security |
| Style | Combination |
| Style Name | Combination |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Master Lock
- **Lock Type:** Combination Lock
- **Item dimensions L x W x H:** 3.66 x 2.76 x 1.18 inches
- **Recommended Uses For Product:** Security
- **Style:** Combination

## Images

![Heavy Duty Disc Padlock [Combination] [Stainless Steel] [Outdoor] M40EURDNUM - Best Used for Storage Units, Sheds, Garages, Trailers and More - Image 1](https://m.media-amazon.com/images/I/61-UgQh3tPL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Heavy duty!
*by R***S on January 4, 2019*

Very solid, heavy duty lock. Comes with a key (don't loose it!) to reset the combo when you need to. Number dials are tough to turn, but I take that as a sign of it's robustnesss--if you have weak fingers, maybe not the lock you want.

### ⭐ BE VERY CAREFUL RESETTING THE COMBO!
*by D***N on June 18, 2025*

We purchased this lock for a storage. We followed the instructions. The lock looks strong but it does not work very well the rotating numbers are difficult to line up and you are never sure whether you have them in alignment or not as there is no definitive click even if you are using any set of numbers (you wouldn't want it to be definitive only when you had the correct 4). I used the code behind the key on the back and got the lock to open then I opened the bolt and inserted the little combination key and rotated clockwise then I set the new code. turned the key removed the key after turning it counter clockwise to set the new code closed the bolt and tried to open it with the new code and it didn't work. Then I tried to go back to the original code but it didn't open so then I tried multiple combinations used the new code but changing each dial either up one number or down one number on each code ring. Then I tried adjusting two at number rings at a time using the same methodology and never got it open again. So, it may be operator error but be careful because your will be in trouble. I thought i followed the intructions to a T but no such luck. Then I searched online to see if there was a number to call to try to reset it since I have the original combo and key. No luck.

### ⭐⭐⭐⭐⭐ Heavy Duty Locks
*by P***E on February 4, 2024*

I needed some good locks to lock down my father’s gates to his fence as we go through probate to settle things. These locks are great to protect from gaining access to the gates. I had some of the thinner metal locks on the gate and some cut through that lock. Well, they will not cut through these locks. The are really heavy and great quality. I did find the instructions a little hard as mines got torn off when I opened the packaging and it took me an hour to try and understand where are they located and I finally found the passcode and stuff. It was torn off with the packaging so I never found it where it said it’s was. Need to do a better job of placing the passcodes where they will not get torn with the packaging and then you can not find it as I thought it did not come with a passcode. Other than that, excellent heavy locks to secure a gate or anything more securely. They are expensive but worth the extra cost.

## Frequently Bought Together

- MASTER LOCK Heavy Duty Disc Padlock [Combination] [Stainless Steel] [Outdoor] M40EURDNUM - Best Used for Storage Units, Sheds, Garages, Trailers and More
- BRINKS – Heavy Duty Combination Padlock – 80mm Chrome Plated Lock with Hardened Steel Shackle – Resettable Security Lock for Storage Lockers, Toolboxes, Outdoor & Indoor Sheds, and More
- Master Lock ProSeries Brass Padlock, Set Your Own Combination Lock, Commercial Grade Locks with Code for Tools, Fences, Gates, 2-1/4 inches Wide, 1177D

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-06-05*