A luggage lock does three jobs at once. It deters casual theft, it lets airport security inspect the bag without damage, and it holds the zipper pull closed so the case does not split open in transit. Most buyers underestimate how much the lock type changes both the user experience and the factory process. This guide walks through what each option does well and where it tends to fall short.
TSA-approved combination locks
TSA combination locks use a three-digit code and a keyhole that airport security can open with a master tool. They are required on bags checked into the United States and many other markets, because security cannot legally cut a non-approved lock to inspect a bag. A TSA lock adds a small cost per bag and a small amount of assembly time, but it removes the most common reason for a broken zipper pull after a flight. Buyers selling into multiple markets should treat TSA approval as the baseline, not the upgrade.
A lock can only hold what the chain survives, so the grade and slider underneath matter as much as the lock itself — that is settled in the zipper grade and hardware specification, not at the lock selection stage.
Key locks
Traditional key locks use a small barrel key and a single latch. They are the cheapest lock option and the simplest to install. The downside is that losing the key locks the buyer out, and rekeying a key lock in the field is not practical. Key locks show up on entry-level soft luggage and on bags where the lock is mostly there to hold the zipper closed rather than to deter a determined thief.
Zipper locks and clip locks
Zipper-mounted combination locks clip directly onto the zipper pulls and slide along to close the opening. They do not require the case to have a built-in lock point, which makes them easy to retrofit on a soft duffel or a backpack that was not designed with a lock in mind. The trade-off is that a clip lock can be removed with enough force and is not TSA-approved, so it works as a deterrent, not as a security inspection solution.
Built-in fixed locks
Built-in fixed locks are integrated into the case shell, usually next to the main zipper pull. They feel more solid than clip locks and are harder to remove, which adds perceived value on a mid-range or premium hard-shell case. The cost is higher because the lock housing, the rivet points, and the lock cylinder all have to be specified at the sample stage, not added later.
Combination vs. key for end users
Combination locks avoid the lost-key problem and let the user reset the code if they want to. Key locks avoid the forgotten-code problem and work without any setup. The decision usually comes down to the buyer demographic and the price point. A travel-focused brand tends to standardize on combination locks, while a basic everyday duffel tends to ship with no lock or a simple key lock.
What to put on a spec sheet
Lock type, TSA approval status, key or combination, mounting style, and replacement policy should all be fixed before sampling. TSA approval in particular changes the bill of materials, so changing it later means reworking the lock housing and the master-pack labeling, not a quick edit.
FAQ
What is a TSA-approved luggage lock? A TSA-approved lock is a lock with a keyhole that airport security can open with a master tool during inspection, so the bag does not have to be broken open. Combination locks are the common form, and TSA approval is effectively required on bags checked into the United States and many other markets.
Are combination or key luggage locks better? Combination locks avoid the lost-key problem and let the user reset the code, while key locks are simpler and cheaper but lock the user out if the key is lost. The right choice depends on the buyer demographic, the price point, and whether TSA approval is required.
Can a luggage lock be added after manufacturing? Clip-on zipper locks can be added to almost any bag with a zipper pull, but built-in fixed locks and TSA-approved combination locks must be specified at the sample stage. Adding a clip lock to a bag that was not designed for one works as a deterrent but is not TSA-approved for inspection.
Buyers comparing suppliers can review our luggage and trolley bags for OEM/ODM specs, materials, and MOQ.