---
product_id: 19128849
title: "Master Lock - (4) High Security Pro Series Keyed Alike Padlocks w/8 Keys, 6230NKA-4 w/BumpStop Technology"
brand: "master lock"
price: "Bs.3342"
currency: BOB
in_stock: true
reviews_count: 8
category: "Master Lock"
url: https://www.desertcart.bo/products/19128849-master-lock-4-high-security-pro-series-keyed-alike-padlocks
store_origin: BO
region: Bolivia
---

# 4 keyed-alike high-security padlocks Weather Tough cover for harsh conditions BumpStop tech blocks lock bumping Master Lock - (4) High Security Pro Series Keyed Alike Padlocks w/8 Keys, 6230NKA-4 w/BumpStop Technology

**Brand:** master lock
**Price:** Bs.3342
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock smarter, not harder — security that keeps up with your hustle.

## Quick Answers

- **What is this?** Master Lock - (4) High Security Pro Series Keyed Alike Padlocks w/8 Keys, 6230NKA-4 w/BumpStop Technology by master lock
- **How much does it cost?** Bs.3342 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/19128849-master-lock-4-high-security-pro-series-keyed-alike-padlocks)

## 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

- • **Lifetime Peace of Mind:** Limited lifetime warranty ensures your investment stays locked down for years to come.
- • **Unified Security, One Key:** Four pro-grade padlocks keyed alike with 8 keys—streamline your access, ditch the keychain bulk.
- • **Built for Brutal Environments:** Weather Tough cover and rustproof chrome finish keep locks flawless rain or shine.
- • **Next-Level BumpStop Protection:** Patented cylinder tech stops bumping attacks dead in their tracks—your property’s new best defense.
- • **Industrial Strength, Lightweight Design:** Solid steel body with hardened boron alloy shackle resists cutting, pulling, and prying without weighing you down.

## Overview

Master Lock’s 4-pack Pro Series keyed-alike padlocks combine advanced BumpStop cylinder technology with rugged weatherproof design, delivering industrial-grade security that resists bumping, picking, and physical attacks. Featuring a solid steel body, hardened boron alloy shackle, and a lifetime warranty, these locks are engineered for harsh outdoor conditions and seamless key management.

## Description

FEATURING BumpStop TECHNOLOGY - Lock bumping a surprisingly simple method of breaking in through locked doors and padlocks - is undoubtedly the newest emerging threat to personal property security. And virtually all locks in use today are particularly vulnerable to bumping. Until now. BumpStop Advanced Cylinder Technology employs an innovative, patent pending design which utilizes a unique reverse rake tapered driver pin, high performance springs and tightly machined cylinder chambers. During a bump attempt, this design prevents the transfer of force from the bump key to the pins and therefore blocks rotation of the cylinder so that the lock remains locked.

Review: Goldi locks - Great Locks! I leave them out in the rain and snow, and they always work. Get as many as you can with the same key, so you don't have to carry a big wad of keys around.
Review: it's the very best lock I've found for my needs - I have a beach house in Baja which is in a remote area and completely off-grid. I've used a number of different types of locks over the years to secure the house while I'm gone, but have experienced 2 break-ins nonetheless...until using these locks. These locks are virtually bullet proof. As mentioned above, I've had no break-ins since using these locks. They also hold up well to the marine environment. Keep in mind, though, nothing metallic will hold up indefinitely to the salt air right on the beach. I replace mine as corrosion becomes evident, which is every year and a half or so. That being said, it's the very best lock I've found for my needs. To top it off, customer service is excellent and timely. This is a great product sold by a great company!

## Features

- Four (4) High Security Locks Keyed Alike w/ 8 Keys. ProSeries Padlocks are designed for Commercial/Industrial applications. Limited Lifetime Warranty.
- These locks feature the BumpStop Advanced Cylinder Technology. (for explanation see product details below).
- ATTENTION: If you order two 4-packs they will NOT necessarily be keyed the same. To ensure you get two 4-packs keyed alike, you must order the 8-pack.
- Ideal for harsh outdoor conditions - exclusive Pro Series Weather Tough cover protects lock from water, ice, dirt and grime. Solid iron shackle shroud resists harsh physical attacks. The removable cylinder can be replaced or re-pinned. 5 spool pin tumbler cylinder for added pick resistance. Dual ball bearing locking mechanism resists pulling and prying.
- Chrome rustproofing provides longer life. These high security, rekeyable 5-pin cylinders with spool pins are virtually impossible to pick. And a dual ball bearing locking mechanism resists pulling and prying.
- Dimensions: 2-1/2 (64mm) wide round solid steel body, each weighing 1.48 lbs. A 7/16 (11mm) diameter hardened boron alloy shackle with 1-1/8 (29 mm) inside height clearance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006M39G5Y |
| Additional Features | Key Lock |
| Best Sellers Rank | #144,977 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #364 in Keyed Padlocks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Chrome |
| Control Method | App |
| Controller Type | Hand Control |
| Customer Reviews | 4.6 out of 5 stars 446 Reviews |
| Finish Types | Chrome |
| Item Dimensions | 4 x 6 x 3 inches |
| Item dimensions L x W x H | 4 x 6 x 3 inches |
| Lock Type | Pin Tumbler |
| Manufacturer | Master Lock |
| Manufacturer Warranty Description | Limited Lifetime Warranty Master Lock Company LLC (“Master Lock”) grants the following warranty: If this product or any part of the product fails due to a defect in materials or workmanship at any time during the life of the product, Master Lock will, at its own discretion, repair or replace the product or part free of charge. Simply contact Master Lock at www.masterlock.com or 1.800.464.2088 for … |
| Material | Alloy Steel , Chrome |
| Material Type | Alloy Steel, Chrome |
| Model Number | 6230NKA |
| Recommended Uses For Product | Security |
| Special Feature | Key Lock |
| Style Name | Industrial |
| UPC | 071649108600 |
| Unit Count | 4 Count |

## Product Details

- **Brand:** Master Lock
- **Item dimensions L x W x H:** 4 x 6 x 3 inches
- **Lock Type:** Pin Tumbler
- **Material:** Alloy Steel, Chrome
- **Special Feature:** Key Lock

## Images

![Master Lock - (4) High Security Pro Series Keyed Alike Padlocks w/8 Keys, 6230NKA-4 w/BumpStop Technology - Image 1](https://m.media-amazon.com/images/I/71v1X+SKcCL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Goldi locks
*by K***R on November 28, 2025*

Great Locks! I leave them out in the rain and snow, and they always work. Get as many as you can with the same key, so you don't have to carry a big wad of keys around.

### ⭐⭐⭐⭐⭐ it's the very best lock I've found for my needs
*by K***. on September 9, 2016*

I have a beach house in Baja which is in a remote area and completely off-grid. I've used a number of different types of locks over the years to secure the house while I'm gone, but have experienced 2 break-ins nonetheless...until using these locks. These locks are virtually bullet proof. As mentioned above, I've had no break-ins since using these locks. They also hold up well to the marine environment. Keep in mind, though, nothing metallic will hold up indefinitely to the salt air right on the beach. I replace mine as corrosion becomes evident, which is every year and a half or so. That being said, it's the very best lock I've found for my needs. To top it off, customer service is excellent and timely. This is a great product sold by a great company!

### ⭐⭐⭐⭐⭐ Good 👍 lock 🔐
*by S***A on August 22, 2025*

This good lock to use lock thing up

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**Shop now:** [https://www.desertcart.bo/products/19128849-master-lock-4-high-security-pro-series-keyed-alike-padlocks](https://www.desertcart.bo/products/19128849-master-lock-4-high-security-pro-series-keyed-alike-padlocks)

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-14*