NAKANEKO Plastic Gladhand Lock for Semi Trailer — Keyed-Alike 12-Pack, 24 Keys, Tool-Free Install

NAKANEKO's Plastic Gladhand Lock keyed-alike 12-pack secures the emergency gladhand connection to help prevent unauthorized trailer movement and tampering.

These molded plastic gladhand locks are designed to be a lightweight, visible, and easy-to-install option for fleets and owner-operators who need a simple way to immobilize a trailer's emergency air coupler. Supplied as a set of 12 locks with two matching keys each (24 keys total), every lock in this pack uses the same key—eliminating the need to carry multiple key types when checking or securing multiple trailers.

How does this lock stop a trailer from moving?

The NAKANEKO gladhand lock fits over the emergency gladhand and prevents the emergency air line from being coupled or manipulated. By physically blocking access to the emergency port, it reduces the chance that someone can restore braking air pressure to move the trailer without authorization.

• Mounts directly on the emergency gladhand to block access
• Rigid plastic body resists casual pry attempts
• Keyed-alike system allows one key to operate all included locks
• Compact 2.5" x 1.4" x 3.3" footprint for easy storage

Is this lock easy to install and use during daily yard operations?

Yes — the lock installs quickly without tools and releases with one of the supplied keys. Its low weight and compact size let drivers fit it into a glove compartment or toolbox, so it's practical for routine coupling checks and during long yard holds.

• Tool-free installation snaps onto the emergency gladhand
• Two keys per lock provide a spare for drivers or supervisors
• Durable plastic keeps the lock lightweight for frequent handling
• Visible color and shape provide an obvious tamper indicator

What are the specifications and what comes in the box?

The pack contains twelve molded plastic gladhand locks, each shipped with two identical keys. The lock body measures approximately 2.5 inches long, 1.4 inches wide, and 3.3 inches tall—sized to fit standard semi-trailer emergency gladhands and to remain compact when stored.

• 12 plastic gladhand locks, keyed alike
• 24 keys total (2 keys per lock)
• Lock dimensions: 2.5" L x 1.4" W x 3.3" H
• Designed for emergency gladhand locking on semi trailers

How durable and weather-resistant is the plastic construction?

The molded plastic is chosen for a balance of toughness and low weight, making the locks resistant to everyday handling and environmental exposure commonly encountered in yard and roadside conditions. While not impervious to severe forced attacks, the lock serves as a strong visual and physical deterrent against opportunistic tampering.

• Robust plastic resists rust and corrosion
• Lightweight design reduces strain when carried frequently
• Visible lock body acts as a deterrent in exposed environments
• Simple keyed mechanism minimizes maintenance needs

Who is this for: The NAKANEKO Plastic Gladhand Lock 12-pack is made for trucking companies, fleet managers, and owner-operators who need an affordable, easy-to-deploy method to secure trailers during loading, parking, or overnight storage. It’s particularly useful for operations that value a single-key system across multiple assets, quick tool-free installation, and a lightweight, corrosion-resistant option for everyday use.