KANTROB
We set out to redefine what hitch security means. With decades of experience in trailer systems and an eye for innovation, we designed the KANTROB Knott Lock & the KANTROB drawbar eye lock — not just to secure trailers, but to completely eliminate vulnerability.
Every detail was developed with security, simplicity, and strength in mind — from marine-grade stainless steel to a patented bullet lock system that resists picking, drilling, and prying. We proudly serve industries that rely on high-value cargo and demand real protection, whether parked or on the road.
Engineered for Hitch Security
- Patented Bullet Lock
- Stainless Steel Body
- Fast Installation
- Locks While Moving
- No Weak Points
- Police-Endorsed
- Fits Knott Hitches
- Dummy Tow Ball


We’ve got answers to help you lock smarter and stay secure.
01What makes the KANTROB Knott Lock different from other hitch locks?
The KANTROB Lock is engineered specifically for Knott hitches and features a patented oval-cylinder bullet lock. It's built from marine-grade stainless steel, installs in seconds, and offers high-security performance both hitched and unhitched — something most generic locks can't provide.
02Can I use the lock while towing my trailer?
Yes. The KANTROB Knot Lock is designed to remain securely in place while towing. It protects your trailer not only when parked but also during transit, offering continuous security at rest stops and beyond. The KANTROB drawbar eye lock however, is only for stationary trailers.
03Is the lock weatherproof?
Absolutely. It's made from solid cast marine-grade stainless steel, which resists rust, corrosion, UV exposure, and harsh weather without any need for paint or coatings.
04What trailers does this lock fit?
The KANTROB Knott lock is specifically designed for Knott hitches. It ensures a tight, precision-engineered fit that maximizes security without interfering with normal hitch operation. The KANTROB drawbar eye hitch is designed specifically for drawbar eye hitches.
05What’s included in the package?
Every KANTROB Lock comes with:
- The two-piece stainless steel lock
- Patented bullet lock mechanism
- Keys
- A Dummy Tow Ball Insert for unhitched protection
- KANTROB spare wheel lock