The trailer hitch lock is available in sizes of 2" and 1.25". The 2" lock has a diameter of 5/8" and fits Class III and Class IV (2"x2") receiver style hitches. Whereas, the 1.25" hitch lock has a diameter of 1/2" and fits Class II (1.25"x1.25") receiver hitches. Nowadays, some hitch locks even come with tamper proof alarms that can immediately alert you in case of burglary or tampering.

Numerous designs of trailer hitch locks have flooded the market recently. The most popular of them are the padlock and flush design hitch locks. They are meant for 1-1/4" trailer hitch receivers. A hitch lock is usually double chrome plated for maximum rust resistance and comes with covered key slots to prevent corrosion.

You can secure your truck hitches and car hitches to tow heavy cargo without worrying about their safety. Now you can hitch along your boat, bike or the snowboard and still keep the top rack free for carrying luggage. Hitches can be installed without even drilling or causing any damage to your vehicle. Truck hitches can tow caravans and other over sized objects for long distances quite smoothly.

With the rising popularity of truck and car hitches the demand for hitch locks have skyrocketed. Thus, the hitch lock manufacturers have come up with innovative designs to safeguard your valuable hitch.