Master Lock 178DBLK 4-Digit Combination Padlock — Hardened Steel, 10,000 Codes
Master Lock 178DBLK 4-Digit Combination Padlock — Hardened Steel, 10,000 Codes
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Unlock the worry, lock in the confidence: the Master Lock 4-digit combination padlock protects your belongings 100%!
Unlock the worry, lock in the confidence! The Master Lock 4-digit combination padlock, model 178DBLK, fully protects your belongings, with up to 10,000 possible codes for convenient, secure use in any situation.
✨ Key Features
- 4-digit combination lock: convenient and secure — no keys to carry, no lost-key worries
- Up to 10,000 possible codes: maximum security, choose your own unique combination
- Zinc metal body and hardened steel: strong, resistant to theft and all kinds of heavy use
💡 Benefits
- Adds security to your belongings: confidently protect luggage, lockers, or drawers, worry-free
- Easy and convenient to use: quickly set your personal code with no fuss over keys
- Modern, long-lasting design: a handsome black body that withstands the elements for long-term use
📸 Product Photos





Why choose the Master Lock 178DBLK?
The Master Lock 178DBLK is the ultimate innovation for the security of your belongings. With a 4-digit combination system offering up to 10,000 possible codes, you never worry about carrying keys and enjoy the freedom that comes with maximum protection. The body is made from strong black-coated zinc metal, and the shackle from hardened steel that resists cutting and heavy use in any environment — perfect for securing luggage, drawers, or other general-purpose uses. Trust the standard quality of Master Lock to protect what you love for the long term. Every product carries a 1-year quality warranty for peace of mind.
📹 Customer Reviews
📋 Specifications
| Item | Detail |
|---|---|
| ⚙️ General Product Information | |
| Model | 178DBLK |
| Lock type | Combination padlock |
| Brand | MASTER LOCK |
| Color | Black |
| Body material | Zinc metal, black-coated |
| 🔒 Security System | |
| Locking system | 4-digit combination |
| Possible codes | Up to 10,000 |
| Shackle | Hardened steel |
| Shackle diameter | 5/16 inch (8 mm) |
| Durability | Resistant to cutting and heavy use |
| 📏 Size and Use | |
| Lock body width | 2 inches (51 mm) |
| Shackle height | 1 inch (25 mm) |
| Suitable for | Securing luggage, drawers, general-purpose locking |
| 📦 Contents and Warranty | |
| In the box | Combination padlock |
| Warranty | 1 year |
*Specifications may vary by model
