Top 10 Hitchlocks Every Caravan Owner Needs

Choosing a hitchlock usually comes down to one question: has it actually been tested, or does it just look tough? The Heavy Duty Alko 3004 Hitchlock answers that with independent certification — it exceeds both Sold Secure Gold and SCM MP03 standards, built from 4mm steel and engineered in the UK.

Fitment

It's designed to work with Alko, AKS 2004 and AKS coupling systems, locking directly over the hitch head so the caravan can't be coupled to a vehicle without the correct key.

What the approvals mean

Sold Secure Gold and SCM MP03 are both third-party accreditation schemes that involve physical attack testing rather than self-certification. A hitchlock holding both marks has been assessed against a defined standard, which is worth checking for whenever you're comparing options.

A visible deterrent

Beyond the physical barrier, a hitchlock fitted every time the caravan is parked sends a clear signal that it isn't an easy target — and that visibility is often as valuable as the lock mechanism itself.