---
product_id: 14353266
title: "410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter"
brand: "master lock"
price: "C$1979"
currency: NIO
in_stock: true
reviews_count: 13
category: "Master Lock"
url: https://www.desertcart.ni/products/14353266-410blk-lockout-tagout-safety-padlock-with-key-black-0-25
store_origin: NI
region: Nicaragua
---

# 1/4 in. shackle diameter for secure fit Operates from -70°F to 350°F withstand extreme temps Key retaining feature prevents accidental unlock 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter

**Brand:** master lock
**Price:** C$1979
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in safety, unlock peace of mind.

## Quick Answers

- **What is this?** 410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter by master lock
- **How much does it cost?** C$1979 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/14353266-410blk-lockout-tagout-safety-padlock-with-key-black-0-25)

## 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

- • **Key Retaining Cylinder:** Never worry about leaving locks unsecured—key stays until locked
- • **Zenex Thermoplastic Body:** Durable, lightweight, and non-conductive for ultimate safety and ease of use
- • **Compact & Portable Design:** 1-1/2 inch wide body with a 1/4 inch shackle fits perfectly in any safety kit
- • **OSHA-Compliant Safety Lock:** Engineered exclusively for lockout/tagout to keep your workplace incident-free
- • **Extreme Temperature Resilience:** Performs flawlessly from freezing cold to scorching heat (-70°F to 350°F)

## Overview

The Master Lock 410BLK is a professional-grade 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 in extreme temperatures (-70°F to 350°F) and includes a key retaining feature to ensure locks are never accidentally left open. Perfect for electrical lockout applications, this compact safety padlock offers high security and lifetime guarantee from a trusted brand.

## 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: top tier value as locksport training: plastic body = lightweight; 7 pin core w 6 securty - can't comment on their utility as actually LOTO lock applications besides that dollar for dollar, you can't find a better core for the price as these. i've bought a few and none were "easy" opens. occasionally stats align and build tolerances work it out such that within the same exact production runs of locks you'll occasionally get one that's oddly simple to open, and another that makes you questions what happened to the skill set you believed you could make pretty straightforward work out of this plastic lock that won't open for you seemingly for anything you are throwing it's way. I'd reccommend buying a few, make sure they're keyed differently (usually are given the LOTO application) that way you really are sure to make these the best training tools you can find for under $20. Say word son.
Review: Sturdy - Well made.

## 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 | #26,003 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #57 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

![410BLK Lockout Tagout Safety Padlock with Key Black 0.25 in. Shackle Diameter - Image 1](https://m.media-amazon.com/images/I/61JgwQeOnZL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ top tier value as locksport training: plastic body = lightweight; 7 pin core w 6 securty
*by M***S on November 5, 2024*

can't comment on their utility as actually LOTO lock applications besides that dollar for dollar, you can't find a better core for the price as these. i've bought a few and none were "easy" opens. occasionally stats align and build tolerances work it out such that within the same exact production runs of locks you'll occasionally get one that's oddly simple to open, and another that makes you questions what happened to the skill set you believed you could make pretty straightforward work out of this plastic lock that won't open for you seemingly for anything you are throwing it's way. I'd reccommend buying a few, make sure they're keyed differently (usually are given the LOTO application) that way you really are sure to make these the best training tools you can find for under $20. Say word son.

### ⭐⭐⭐⭐⭐ 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.

## 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 Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-14*