Sold Secure tested · Secured by Design accredited

The lock you never take off

Every other hitch lock has to come off before you can tow. So it ends up in the shed, and your trailer sits unprotected. Kantrob stays on. Fit it once and it’s on the trailer when the thief arrives.

Register your interest See how it fits

Every other lock
Kantrob
Remove it to tow
Stays on while towing
Protected when you remember
Protected always
Lives in the shed
Lives on the hitch

Independently tested and rated

Sold Secure — tested to reduce crime
Secured by Design — Official Police Security Initiative

Certificate details are available on request.

Trailers are the most stolen item on the farm

A trailer takes under a minute to hitch and drive away. The only thing that stops it is a lock that’s actually fitted.

MOST STOLEN

Trailers are the most commonly stolen item of farm machinery.

An Garda Síochána

£2.2M

The cost of rural crime in Northern Ireland in 2025, up almost a quarter in a year.

NFU Mutual

< 1 MIN

Long enough to hitch an unsecured trailer and drive it off the yard.

Time to steal

Kantrob hitch lock fitted to a Knott coupling on a trailer, keys in the barrel

The product

Knott hitch lock

Cast stainless steel, 2.5 kg, and engineered to stay fitted while you tow.

  • Cast stainless steel
  • 2.5 kg
  • Fits all Knott couplings

See the full specification

How it works

  1. Slide it on

    Fits over the coupling in one movement. No tools, and it installs in under 10 seconds.

  2. Turn the key

    Independently tested by Sold Secure and verified as drill and pick resistant.

  3. Hitch up and go

    It stays on while towing. Nothing to remove, nothing to store.

  4. Leave it on

    Parked in the yard, at the mart or on site, it’s already locked.

Which lock fits my hitch?

It fits every Knott coupling — KF, KFG, KRV and KS. Check the code stamped into your casting.

Who it’s for

  • Farmers

    Trailers, stock boxes and machinery standing in open yards.

  • Contractors

    Plant and tipping trailers left on site between jobs.

  • Fleet operators

    Trailers across multiple sites and drivers. Fleet enquiries

  • Dealers and merchants

    Agri merchants, trailer dealers and parts distributors. Trade enquiries

Make it with us

Kantrob is looking for manufacturing and distribution partners. If you produce or distribute towing and security hardware, we would like to talk.

Partner enquiry

Tell us you would use it

If you run trailers, your view is worth more to us than a sale right now. Tell us what you run and what you would want from it.

Register your interest