---
product_id: 5755231
title: "Black Combination Padlock, Indoor Gym Locker Lock with Customizable 3-Digit Code for Luggage, Backpacks, Cabinets, 647BLKEC"
brand: "master lock"
price: "A$15"
currency: AUD
in_stock: true
reviews_count: 13
category: "Master Lock"
url: https://www.desertcart.com.au/products/5755231-black-combination-padlock-indoor-gym-locker-lock-with-customizable-3
store_origin: AU
region: Australia
---

# 30mm durable metal body 3-digit customizable combo 5mm cut-resistant steel shackle Black Combination Padlock, Indoor Gym Locker Lock with Customizable 3-Digit Code for Luggage, Backpacks, Cabinets, 647BLKEC

**Brand:** master lock
**Price:** A$15
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in your security, unlock your freedom!

## Quick Answers

- **What is this?** Black Combination Padlock, Indoor Gym Locker Lock with Customizable 3-Digit Code for Luggage, Backpacks, Cabinets, 647BLKEC by master lock
- **How much does it cost?** A$15 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/5755231-black-combination-padlock-indoor-gym-locker-lock-with-customizable-3)

## 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 Strength:** Sleek 1-3/16 inch metal body built for everyday toughness without bulk
- • **Trusted Durability:** Backed by Master Lock’s Limited Lifetime Warranty for peace of mind
- • **Keyless Convenience:** Set and reset your own 3-digit code for hassle-free, key-free access anytime
- • **Cut-Resistant Security:** Robust 3/16 inch steel shackle engineered to resist cutting and sawing attempts
- • **Travel-Ready Versatility:** Perfectly sized for gym lockers, luggage, backpacks, and cabinets on the go

## Overview

The Master Lock 647D is a compact, durable combination padlock featuring a 30mm metal body and a 5mm cut-resistant steel shackle. Its customizable 3-digit code eliminates the need for keys, making it ideal for securing gym lockers, luggage, backpacks, and cabinets. Designed for everyday reliability and backed by a Limited Lifetime Warranty, this lock offers professional-grade security in a sleek, travel-friendly package.

## Description

Product Description Master Lock Master Lock Black Luggage Lock, Small Combination Lock with Steel Shackle, Set Your Own Combination to Protect Gym Lockers, Cabinets, Backpacks, 647D delivers straightforward, dependable security with true keyless convenience. Built around a durable 1‑3/16 in (30 mm) wide metal body, it’s designed to stand up to daily handling while keeping weight and bulk to a minimum. This combo lock's steel shackle measures 3/16 in (5 mm) in diameter and 7/8 in (22 mm) in length, offering resistance to cutting and sawing so you can lock with confidence. A smooth, easy‑to‑read three‑dial combination lets you choose and remember your code, removing the hassle of carrying keys, replacing lost keys, or waiting on key holders. Set it once and access stays simple: turn the dials, open the shackle, and you’re on your way. The compact travel lock factor fits naturally where you need a small, reliable lock, and the metal construction provides a reassuring feel every time you secure your items. Backed by a Limited Lifetime Warranty, this padlock pairs practical convenience with the peace of mind that comes from a brand you know and trust. Choose the Master Lock 647D when you want a straightforward, key‑free solution made of metal and steel components, three‑dial combination security, and lasting support under a Limited Lifetime Warranty. From the Manufacturer Master Lock 647D 1-3/16" (30mm) Wide Luggage Lock - Set-Your-Own Combination

Review: Simple, reliable, and perfect for the gym - I bought this lock for everyday use at the gym and it works exactly as expected. The size is compact but still feels sturdy and secure. The combination is easy to set and remember, and the numbers turn smoothly without getting stuck. I like that I don’t have to carry a key around, which makes it convenient for lockers and travel. Build quality feels solid and durable for the price. Overall, a simple and reliable lock that does the job well. Definitely recommend if you want something small and hassle-free.
Review: Great lock. - This lock is super simple to set the code on and is very durable. I’ve personally tried to see if someone can pull it apart and you definitely can’t. The lock fits around most things you need to lock. Very secure.

## Features

- Durable Construction: Metal body measures 1‑3/16 in (30 mm) wide for strength and reliability
- Steel Shackle: 3/16 in (5 mm) diameter and 7/8 in (22 mm) length resists cutting and sawing
- Combination Lock: Three dial design allows you to set and reset your own code for keyless convenience
- Travel Lock: Compact size fits easily on luggage, backpacks, and gym bags for secure storage
- Padlock Versatility: Ideal for securing lockers, luggage, and personal items at home or on the go
- Limited Lifetime Warranty: Provides peace of mind from a brand you know and can trust
- 1-13/16 in. (30 mm) wide lock body; 3/16 in. (5 mm) diameter shackle with 7/8 in. (22 mm) length, 3/8 in. (10 mm) width

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BD8MQ0 |
| Additional Features | Cut Resistant |
| Best Sellers Rank | #1,760 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Combination Locks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Black |
| Control Method | App |
| Controller Type | Manual |
| Customer Reviews | 4.4 out of 5 stars 8,032 Reviews |
| Finish Types | Polished |
| Global Trade Identification Number | 00071649080050 |
| Included Components | Unit^Instruction Guide |
| Item Dimensions | 0.56 x 1.2 x 2.86 inches |
| Item Type Name | Combination Padlock |
| Item Weight | 0.08 Kilograms |
| Item dimensions L x W x H | 0.56 x 1.2 x 2.86 inches |
| Lock Type | Combination Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 647D |
| Material | Alloy Steel , Metal |
| Material Type | Alloy Steel, Metal |
| Model Name | 646D |
| Model Number | 647D |
| Number of Pieces | 1 |
| Recommended Uses For Product | Luggage |
| Shape | Rectangular/Irregular |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Cut Resistant |
| Style Name | Scrolling |
| UPC | 071649080050 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Master Lock
- **Item dimensions L x W x H:** 0.56 x 1.2 x 2.86 inches
- **Lock Type:** Combination Lock
- **Material:** Alloy Steel, Metal
- **Special Feature:** Cut Resistant

## Images

![Black Combination Padlock, Indoor Gym Locker Lock with Customizable 3-Digit Code for Luggage, Backpacks, Cabinets, 647BLKEC - Image 1](https://m.media-amazon.com/images/I/618a93myJrL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is the exact length & width of this lock?**
A: The measurements of the lock are:height 1 3/4"width 1 1/4"thickness 1/2"shackle height 1 1/8"shackle thick 3/16"Hope this helps.

**Q: i followed the instructions and put it in the 90 degree position. now it's stuck there. anyone have a solution?**
A: If you're able to push down and turn, then do so. If not, try the new code or the original if that doesn't work. Also, be sure that you followed the instructions on which way to turn the lock while setting the code, as different steps have different directions.

**Q: How do I change my combination?**
A: It doesn’t work, every time I try to change the code the lock it’s stuck and stops working. Then I had to buy a new one it sucks

**Q: Is the body made of metal or plastic?**
A: The lock as a metal body.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple, reliable, and perfect for the gym
*by A***S on February 13, 2026*

I bought this lock for everyday use at the gym and it works exactly as expected. The size is compact but still feels sturdy and secure. The combination is easy to set and remember, and the numbers turn smoothly without getting stuck. I like that I don’t have to carry a key around, which makes it convenient for lockers and travel. Build quality feels solid and durable for the price. Overall, a simple and reliable lock that does the job well. Definitely recommend if you want something small and hassle-free.

### ⭐⭐⭐⭐⭐ Great lock.
*by Z***K on May 30, 2026*

This lock is super simple to set the code on and is very durable. I’ve personally tried to see if someone can pull it apart and you definitely can’t. The lock fits around most things you need to lock. Very secure.

### ⭐⭐⭐⭐⭐ Perfect three digit lock
*by Y***. on May 30, 2026*

Very happy with the functionality. Always wanted a three digit lock. It’s plenty for a lock.

## Frequently Bought Together

- Master Lock Black Combination Padlock, Indoor Gym Locker Lock with Customizable 3-digit Code for Luggage, Backpacks, Cabinets, 647D
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**Shop now:** [https://www.desertcart.com.au/products/5755231-black-combination-padlock-indoor-gym-locker-lock-with-customizable-3](https://www.desertcart.com.au/products/5755231-black-combination-padlock-indoor-gym-locker-lock-with-customizable-3)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-07-15*