---
product_id: 14353266
title: "Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter"
brand: "master lock"
price: "€ 31.49"
currency: EUR
in_stock: true
reviews_count: 13
category: "Master Lock"
url: https://www.desertcart.nl/products/14353266-master-lock-410blk-lockout-tagout-safety-padlock-with-key-black
store_origin: NL
region: Netherlands
---

# 1/4 in. shackle diameter - secure fit Operates from -70°F to 350°F - extreme temp ready Key retaining feature - never accidentally unlocked Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter

**Brand:** master lock
**Price:** € 31.49
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in safety, unlock peace of mind.

## Quick Answers

- **What is this?** Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter by master lock
- **How much does it cost?** € 31.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/14353266-master-lock-410blk-lockout-tagout-safety-padlock-with-key-black)

## 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

- • **Compact Yet Robust:** 1-1/2 inch wide body with a 1/4 inch shackle balances portability with high-security standards.
- • **Key Retaining Security:** Innovative design guarantees the lock stays engaged until the key is removed—no accidental unlocks.
- • **Zenex Thermoplastic Body:** Durable, lightweight, and non-conductive for safe handling in high-risk electrical environments.
- • **OSHA-Compliant Safety Lock:** Engineered exclusively for lockout/tagout protocols to keep your workspace incident-free.
- • **Extreme Temperature Resilience:** Performs flawlessly from -70°F to 350°F, ensuring reliability in any industrial setting.

## Overview

The Master Lock 410BLK is a specialized lockout/tagout safety padlock featuring a durable, lightweight Zenex thermoplastic body and a 1/4 inch diameter metal shackle. Designed for OSHA compliance, it operates reliably across extreme temperatures (-70°F to 350°F) and includes a key retaining feature to prevent accidental unlocking. Ideal for electrical lockout applications, this compact lock combines high security with practical portability, backed by Master Lock’s trusted lifetime guarantee.

## Description

Product Description Master Lock 410BLK Lockout Tagout Safety Padlock with Key features a 1-1/2 in. (38 mm) wide plastic red body and a 1-1/2 in. (38 mm) tall, 1/4 in. (6 mm) diameter metal shackle. Designed exclusively for Lockout Tagout applications as part of a comprehensive OSHA compliant safety program. The durable, lightweight, non-conductive lock body is easy to carry and padlock features high security, reserved-for-safety cylinder with key retaining, to ensure padlock is not left unlocked. The Lifetime Guarantee provides peace of mind from a brand you know and can trust. From the Manufacturer Master Lock Safety Series padlocks are keyed alike. Customize on-site with permanent, write on labels. Compliance with OSHA "one employee, one lock, one key" directive. Key retaining feature ensure that the padlock is not left unlocked. Durable, lightweight, nonconductive Zenoy lock body. Designed exclusively for Lockout/Tagout applications. 1-1/2" (3.8cm) wide 1-3/4" (4.4cm) tall

Review: Sturdy - Well made.
Review: Excellent for Locksport / Picking - But Read The WARNING! - For those of us in the Locksport Community, we all know Master Lock is the butt of a great number of jokes because their products are truly horrible. However, this padlock is a rare exception. This lock is NOT designed to withstand physical attacks; the body is made of plastic. However, with a 6-pin core containing all security pin drivers, it's great practice for those looking to sharpen or maintain their skills with spool and serrated pins. My attached pictures give you a look inside the lock. The lock housing is not designed to be opened; the plastic body is sealed. I broke mine open along the seam line and then super-glued it back together. The plug has a standard Master Lock keyway but because the entire core is relatively small, maneuvering your pick can be a little tricky due to limited space. Also, this is a dead core meaning there is no spring tension on the plug. Precision tension therefore becomes very important which is more great practice. My lock (and I assume yours will too) contained 5 spool drivers, 1 serrated driver (having two spaced out serrations), and 6 standard key pins. For prices in the single digits, you just can't beat this lock. Now, if someone could only talk Master Lock into pinning ALL their locks this way... [***WARNING*** ] The opening in the plastic body through which the key is inserted is warded so that when turning the key to unlock it, the key (and therefore the plug) will only rotate 90 degrees before stopping. After successfully picking this lock, DO NOT rotate the plug anywhere near 180 degrees. Stop at 90 like the key does. The reason for this is because if you rotate the core 180 degrees, all of the key pins in the plug will fall out inside the body of the lock. You will then be forced to either throw it away or crack it open and re-pin it. You can see in one of my pictures what the lock will look like once you crack it open if you pick it and rotate the plug too far. All of the key pins are laying loose in a recess.

## Features

- Lockout tagout lock is best used for electrical lockout applications as part of a comprehensive OSHA compliant safety program
- Zenex thermoplastic safety lock body is durable, lightweight, and non-conductive; functions in temperatures from -70 to 350 degrees Fahrenheit
- Features a cylinder that is reserved for safety padlocks; key retaining feature ensures padlock is not left unlocked
- 1-1/2 in. (38 mm) Wide lock body with 1/4 in. (6 mm) diameter shackle, 1-1/2 in. (38 mm) shackle length and 25/32 in. (20 mm) width
- Includes one black lockout tagout padlock, one key

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0010E8VA6 |
| Best Sellers Rank | #30,351 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #71 in Keyed Padlocks |
| Brand | Master Lock |
| Color | Black |
| Control Method | App |
| Controller Type | Hand Control |
| Date First Available | December 15, 2007 |
| Department | unisex-adult |
| Finish Type | Vinyl Coating;Painted |
| Global Trade Identification Number | 00071649078965 |
| Included Components | Unit^Instruction Guide |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.53 ounces |
| Item dimensions L x W x H | 3.6 x 3.9 x 3.8 inches |
| Item model number | 410BLK |
| Lock Type | Key |
| Manufacturer | Master Lock |
| Material | Metal |
| Model Name | 410BLK |
| Number of Pieces | 1 |
| Product Dimensions | 3.6 x 3.9 x 3.8 inches |
| Recommended Uses For Product | Gate |
| Shape | Rectangular |
| Special Feature | Key Lock |
| Style | Safety Padlock |
| UPC | 696726799481 071649078965 |

## Product Details

- **Brand:** Master Lock
- **Item dimensions L x W x H:** 3.6 x 3.9 x 3.8 inches
- **Lock Type:** Key
- **Material:** Metal
- **Special Feature:** Key Lock

## Images

![Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter - Image 1](https://m.media-amazon.com/images/I/61JgwQeOnZL.jpg)
![Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter - Image 2](https://m.media-amazon.com/images/I/61V4tEAMCFL.jpg)
![Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter - Image 3](https://m.media-amazon.com/images/I/71N5c3llejL.jpg)
![Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter - Image 4](https://m.media-amazon.com/images/I/71ZhaED6KUL.jpg)
![Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter - Image 5](https://m.media-amazon.com/images/I/718uz2kNH4L.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sturdy
*by E***S on December 20, 2025*

Well made.

### ⭐⭐⭐⭐⭐ Excellent for Locksport / Picking - But Read The WARNING!
*by M***R on September 24, 2018*

For those of us in the Locksport Community, we all know Master Lock is the butt of a great number of jokes because their products are truly horrible. However, this padlock is a rare exception. This lock is NOT designed to withstand physical attacks; the body is made of plastic. However, with a 6-pin core containing all security pin drivers, it's great practice for those looking to sharpen or maintain their skills with spool and serrated pins. My attached pictures give you a look inside the lock. The lock housing is not designed to be opened; the plastic body is sealed. I broke mine open along the seam line and then super-glued it back together. The plug has a standard Master Lock keyway but because the entire core is relatively small, maneuvering your pick can be a little tricky due to limited space. Also, this is a dead core meaning there is no spring tension on the plug. Precision tension therefore becomes very important which is more great practice. My lock (and I assume yours will too) contained 5 spool drivers, 1 serrated driver (having two spaced out serrations), and 6 standard key pins. For prices in the single digits, you just can't beat this lock. Now, if someone could only talk Master Lock into pinning ALL their locks this way... [***WARNING*** ] The opening in the plastic body through which the key is inserted is warded so that when turning the key to unlock it, the key (and therefore the plug) will only rotate 90 degrees before stopping. After successfully picking this lock, DO NOT rotate the plug anywhere near 180 degrees. Stop at 90 like the key does. The reason for this is because if you rotate the core 180 degrees, all of the key pins in the plug will fall out inside the body of the lock. You will then be forced to either throw it away or crack it open and re-pin it. You can see in one of my pictures what the lock will look like once you crack it open if you pick it and rotate the plug too far. All of the key pins are laying loose in a recess.

### ⭐⭐⭐⭐⭐ Good lock
*by A***Z on November 29, 2025*

There isnt much to these. Easy to see and mechanism is easy to turn. Dropped it on concrete a few times and its fine.

## Frequently Bought Together

- Master Lock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter
- Master Lock Red Lockout Tagout Safety Padlock with Key, Metal Shackle and Non-Conductive Lock Body for Electrical Applications, 410RED
- Master Lock 410GRN Lockout Tagout Safety Padlock with Key Green 0.25 in. Shackle Diameter

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-26*