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A detail shot of the smooth, ball-bearing drawer slides on a US General tool chest with a lock installed.

US General Series 3 Lock Set

Explore US General locks and keys designed to secure your heavy-duty tool storage. Compare cylinder replacements, full latch sets, and specialized drawer mechanisms to protect your valuable tools.
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Essential Locks for US General Tool Storage

Lock #1

US General Toolbox Drawer Lock Box - Direct Replacement for Secure Drawer Closure

This direct replacement lock is engineered as a precise fit for US General toolbox drawers, ensuring they stay firmly closed. It protects your tools from shifting damage and provides a straightforward solution for restoring secure access to your storage system.
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A single silver cylinder replacement lock for a US General toolbox drawer.
A 6-piece set of black latch and lock replacement parts for US General Pro tool boxes.
Lock #2

US General Pro Tool Box Latch and Lock Replacements - 6-Piece Kit for Gen 1 & 2 Boxes

Designed for first and second-generation US General Pro tool boxes, this 6-piece set provides comprehensive black latch and lock replacements. It allows you to refresh the entire locking mechanism on multiple drawers, restoring like-new security and smooth operation.
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Lock #3

US General Tool Box Lock Replacement Cylinder - Multi-Purpose Silver Cylinder with Keys

A versatile, silver-finish cylinder lock that fits cabinets, file cabinets, mailboxes, and toolboxes. Supplied with matching keys, it offers a universal security solution for various storage needs beyond just your primary tool chest.
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A silver multi-purpose cylinder lock with keys for toolboxes and cabinets.
A two-pack of black keyed-alike mortise locks for US General cabinets and carts.
Lock #4

GVDCC Black Toolbox Lock for US General Cabinets - 2-Pack Keyed Alike Mortise Locks

This 2-pack of keyed-alike mortise locks features a sleek black finish and is designed for a 3/4 inch mounting hole. Ideal for RVs, storage compartments, and tool carts, it provides consistent, convenient security with one key for both units.
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US General Series 3 Lock Set with Keys - Complete Security Kit for Drawers and Lid

This complete lock set is specifically engineered for US General Series 3 tool storage units, providing a comprehensive security solution in one package. It includes all necessary lock cylinders and matching keys to secure both the main cabinet drawers and the top lid, ensuring consistent and organized access. Designed as a direct fit, it eliminates guesswork and guarantees that every locking point on your Series 3 chest or cabinet functions with a single, unified key system, offering both convenience and robust protection for your valuable tool collection.
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A complete lock set kit with multiple cylinders and keys for a US General Series 3 tool cabinet.

Trusted Security Upgrades and Solutions

These popular US General lock solutions address specific security needs, from enhancing mobile tool cart stability to providing universal drawer security for classic tool cabinets.
A 3D printed PETG security locking mechanism for a US General tool cart drawer.

2Pcs Tool Cart Drawer Lock for US General - 3D Printed PETG Security Upgrade Mechanism

Engineered as a security upgrade, this 3D printed PETG locking mechanism is designed for US General tool cart drawers. It helps keep drawers securely closed during movement, preventing accidental opening and protecting tools in a mobile environment.
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A security latch lock installed on a drawer of a Harbor Freight US General tool cart.

Tool Cart Drawer Lock for Harbor Freight US General - Workshop Security Latch Upgrade

A security latch upgrade designed for garage workshop organization. This lock is specifically compatible with US General storage drawer systems, offering a reliable way to secure access and organize your tool collection for efficient workflow.
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A universal 1-piece linkage drawer lock set for American tool cabinets.

US Toolbox Lock American Tool Cabinet Drawer Set - Universal 1-Piece Linkage Lock

A universal 1-piece linkage drawer lock set built for American tool cabinets, including many US General models. Its durable build quality ensures reliable, long-term performance, making it a practical choice for restoring function to older or high-use cabinets.
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A montage showing tool storage locks in use in a professional shop, a service van, and a home garage.

Secure Your Tools in Any Environment

US General locks serve key security needs across professional garages, mobile work vans, and organized home workshops. Consider the primary environment and usage pattern to choose the most effective lock solution.

Professional Shop Security

For fixed tool chests in a shop, locks prevent unauthorized access and protect high-value tools. A complete cylinder set or full latch refresh ensures every drawer is secure during off-hours or shared workspace use.

Mobile Tool Cart Security

In a mobile setup like a service van or trailer, drawers can slide open during transit. Security latches and robust mechanisms are critical to keep tools contained and prevent damage or loss while on the road.

Home Garage Organization & Safety

Even in a home garage, organizing tools with keyed-alike locks adds a layer of safety and convenience. It deters casual tampering and helps maintain an orderly system where every compartment is accounted for.

Compare Lock Types
Choosing the right lock for your US General tool storage involves matching security level, installation type, and compatibility. Consider whether you need a full cylinder replacement, a simple latch, or a specialized mechanism for your Series 3 drawers.
A collection of different lock types for tool cabinets, including cylinder locks, latch sets, and drawer mechanisms.
A close-up view of a tool box drawer with a lock installed, showing the key in the lock and the secure fit.

Find the Right Security Match for Your Cabinet

Standard Cylinder Locks

Standard cylinder locks fit common mounting holes on many tool boxes and cabinets. They provide a simple, keyed replacement for lost or damaged originals, securing drawers and lids against casual tampering.

Full Latch and Lock Sets

Complete latch and lock sets replace the entire mechanism on first and second-generation tool boxes. This ensures all moving parts are refreshed, restoring the original secure closure and smooth operation.

Security Drawer Mechanisms

Specialized drawer locks, like security latch upgrades, add an extra layer of protection for mobile tool carts. They help prevent drawers from sliding open during transport or in busy shop environments.

Explore Types of Tool Storage Locks

US General locks come in several distinct types to match different cabinet models, security levels, and installation needs. Identifying the right subtype ensures a proper fit and reliable protection for your specific setup.

Replacement Cylinder Locks

These locks replace just the key cylinder in the existing lock housing. They are the most common and direct solution for restoring security when the original cylinder is lost or damaged but the surrounding mechanism is fine.

Full Latch and Lock Kits

A complete kit that includes the cylinder, latch, handle, and all mounting hardware. This is ideal for older tool boxes where the entire locking mechanism is worn out and needs a full refresh for proper function.

Mortise Locks for Carts

Designed for the specific mounting holes of mortise-style locks, often found on tool carts, RVs, and certain cabinets. They require a specific hole diameter, typically 3/4 inch, for a flush, secure installation.

Security Drawer Latches

These add an extra physical barrier to the drawer slide, preventing it from opening. They are especially useful for mobile tool carts that are moved frequently, where vibrations could otherwise cause drawers to slide open.

Series-Specific Lock Sets

Built as a direct, all-in-one solution for a specific cabinet series, like the Series 3. They guarantee all components—from lid to drawers—are secured with a matching key and uniform performance.

General-Purpose Cabinet Locks

Basic, cost-effective locks suitable for general-purpose cabinets, mailboxes, or less-frequently used storage. They provide a standard level of security for applications where heavy-duty protection isn’t the primary concern.

What Customers Say About US General Locks

Installing the cylinder lock was straightforward, and it fit perfectly into my Series 2 chest. Now all my drawers lock with the same key, which is a huge convenience in the shop. The build feels solid and the action is smooth.
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Mike T.
The security latch for my tool cart has been a game-changer. No more drawers sliding open when I move the cart across the garage floor. It's a simple upgrade that gives real peace of mind about my tools staying put.
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Sarah L.
I bought the 6-piece latch set to refresh my older Pro box. While it took some time to swap each one, the result is like new. The boxes latch securely and the new keys work flawlessly. Worth the effort for the restored security.
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Dave R.
Needed a universal lock for an old cabinet, and this linkage set did the trick. The quality is noticeably better than generic options. It was a bit tricky to install, but now it functions reliably day after day in my workshop.
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Jen K.
The mortise locks for my utility trailer were easy to install into the existing holes. Having them keyed alike means one less key to keep track of. They've held up well against dust and vibration so far.
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Carlos P.
A person's hand testing a newly installed lock on a tool cabinet drawer in a workshop setting.
Common Questions

Answers About Tool Storage Security

Check the mounting hole diameter and the specific model generation of your US General tool box. Our product descriptions list compatible Series and hole sizes, like 3/4 inch for mortise locks, to ensure a proper fit before purchase.
A full latch set replaces the entire locking mechanism, including the handle latch and cylinder. This is best for older boxes where the latch is worn, while a cylinder-only replacement is sufficient if the latch mechanism itself is still functional.
Many of our lock sets, especially the keyless or standard cylinder types, are designed for straightforward DIY installation. They often fit into existing holes and can be secured with basic tools, making them a practical upgrade for shop owners.
Keyed-alike sets allow you to use one key for multiple locks across different cabinets or drawers. This simplifies access in a busy workshop, reducing the number of keys you need to manage while maintaining secure storage.
For a complete security refresh on a Series 3 cabinet, a dedicated lock set provides all necessary components for the main drawers and lid. This ensures consistent keying and lock performance across your entire storage unit.
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Organize and Maintain Your Tool Storage

Explore further resources and tips on maintaining, organizing, and optimizing your US General tool storage system for maximum efficiency and security.