Whether used for storage or transportation, containers need a high-quality locking mechanism that will keep them in place and also protect the content in them. Container locks come in different shapes, sizes, and are made of different materials. That being said, most of them fall into two categories: a padlock and a combination lock. Of course, it’s also useful to mention other types of container locks such as twist lock joiners, bridge clamps for shipping containers, multiple-dial combination locks, footings for shipping containers, among others. Let’s take a closer look to some of the best (and most important) container locks found today.

Twist lock joiners

Twist lock joiners

The whole purpose of container locks is to make it more practical to secure and protect containers whether they’re stored on their own or attached to something else. Speaking of connecting containers to something else, usually the other container, twist locks are made specifically for this purpose. With twist lock joiners you can go one step further as these devices connect standard twist-locks together. As a result, you’re able to achieve horizontal connecting to adjoining shipping containers easily. The joiners are quite simple; instead of connecting directly to the containers they bind double-ended twist-locks together. That way, they allow these locks to fit perfectly between containers. It’s needless to mention this is beyond useful for situations where you have multiple containers that need to be stacked, aligned, and secured. Applications of twist lock joiners are numerous ranging from shipping to movie sets, storages, and you name it.

Container Corner Castings

Container Corner Castings

Corner casting is, basically, the structural element of a container and its main purpose is to allow it to connect to other containers in both horizontal and vertical manner. Container corner castings also allow us to connect containers to various transport modes be it rail, ship, or road. Not all corner castings are created equal, though. For example, weldable twist locks are incredibly versatile as you can include them onto a factory floor, truck, a barge, and other structures. What makes weldable corner castings so amazing is that they allow us to connect the container to some other structure, but at the same time they’re removable so you can simply detach it whenever it’s necessary. If you’re in the shipping industry, the corner castings are a must-have item.

Shipping Container Bridge Clamps

Shipping Container Bridge Clamps

Shipping container bridge clamps are, essentially, heavy-duty clamps that are specifically created to lock containers together. Bridge clamps are practical mainly because they can connect containers side by side, or on top of one another like legos. However, the most common method of usage of bridge clamps is to connect containers horizontally. In order to lock and secure containers, bridge clamps are used in combination with twist locks. The two are a perfect match where shipping container bridge clamps take up the side holes whereas twist locks occupy holes on top and bottom of the corner casting. Their position in the color casting and the whole purpose of connecting containers and acting as the bridge gave these clamps their name. 

Shipping Container Footings

Shipping Container Footings

In some cases, it is necessary to get the container off the ground. For example, if the ground is boggy or wet and container carries content with a lot of weight, you may want to consider using shipping container footings. These footings are also useful for other scenarios and static applications. Although they are built to last and remain durable, containers still need more support and protection. Nowadays, it’s possible to find different shipping container footings, but one thing a vast majority of them have in common is a weldable twist lock in various forms such as hook bolts on the base. In addition to static applications, footings also prove to be useful for shipment in the harshest conditions.  

As seen throughout this post there are many ways to connect the container to other containers and different structures and thereby keep them safe, secure, and protected. In most cases, a combination of different locks proves to be the best way to stack containers during shipping, but also in the motionless environment as well. Container locks are usually heavy duty and are made to last. 


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