Glad Hand Lock Keyed Alike 4 Pack Heavy Duty Aluminum - Trailer Safety

In this review of the Glad Hand Lock Keyed Alike 4 Pack, the bottom line is simple: it is a straightforward, heavy duty way to dead-line a semi-trailer during loading and unloading. Built from cast aluminum and supplied keyed alike in a four pack, the set is aimed at owner-operators and fleet maintenance staff who need a quick physical lockout for the emergency air intake on trailers. The single biggest reason to buy is the simplicity of immobilizing a trailer - the glad hand must be removed before the emergency air line can be connected, making accidental movement far less likely.

Key Features

• Pack Size: Four locks with two keys each provide spares and allow identical keys across all locks for convenient fleet use.
• Material: Cast aluminum construction offers corrosion resistance and a balance of strength without excessive weight.
• Keyed Alike: All locks use the same key, reducing the need to manage multiple keys for the same trailer set.
• Quick Install: The design can be installed and removed in seconds, allowing fast lockout during loading or unloading.
• Security Cylinder: A cylinder lock prevents removal without the key, ensuring the glad hand stays secured until intentionally released.
• Compact Size: At about 2.5in by 1.4in by 3.3in, each lock is compact enough to store on a truck or in a toolbox.

Who It's For

The glad hand lock set is best for truck drivers, small fleet operators, and yard personnel who need a no-nonsense physical lockout for semi-trailer emergency air intake valves while loading or unloading. The keyed alike four pack suits teams that want consistent access without juggling separate keys.

Those who need high-security tamperproof locks with advanced pick resistance or those that require integrated alarm features should look elsewhere, since this product focuses on simple mechanical immobilization rather than advanced electronic security.

Pros & Cons

Pros

• Simple mechanical dead-line solution that prevents trailer movement during loading.
• Cast aluminum construction resists corrosion and keeps the locks lightweight for daily use.
• Keyed alike system and extra keys in the pack reduce key management hassles.

Cons

• Customers report mixed opinions on fit and functionality, so fitment should be checked for specific gladhand models.
• The lock provides physical immobilization but is not a high-security, tamper-evident device for long-term unattended storage.

Specifications

Brand	NAKANEKO
Pack Size	4 Pack
Color	Red
Material	Cast aluminum
Keys	2 keys per lock (8 keys total)
Lock Size	2.5in x 1.4in x 3.3in

Our Verdict

The Glad Hand Lock Keyed Alike 4 Pack is a practical, value-focused choice for anyone who needs a fast mechanical way to dead-line trailers during loading and unloading. It delivers corrosion-resistant construction, quick installation, and the convenience of keyed alike locks, making it a good fit for fleets and owner-operators who prioritize simple, reliable trailer immobilization.

Frequently Asked Questions

Are the locks keyed the same?
Yes, the set is keyed alike so the same key opens all four locks, and two keys are supplied per lock.

What material are the locks made from?
The locks are cast aluminum for corrosion resistance and manageable weight.

Will these prevent a trailer from being moved?
Yes, the glad hand must be removed before the emergency air line can be connected, which prevents the trailer from being released until the lock is removed.