Stronghold Hitchlock For Bradley Autohead Hitches fits D5050AUTO, D201CA and MK4AUT Bradley Hitches. Approved to Sold Secure Gold standard for caravans and trailers. Approved by Secured by Design. Bradley Autohead are a popular fitment on plant trailers. Fits over the handle to stop unauthorised coupling and allows use of Bradley integral lock. Fitment in under 10 seconds. Weighing only 4.3Kg it is easily fitted, hitched or unhitched. Unique high security patented locking system. High security pick-free locks have thousands of possible key combinations and are supplied with 3 keys, plus a key identity tag. Water and corrosion proof. Registered design no. UK 9000 653 241 0006. Registered design no. Europe 000 653 241 - 0006. The box contains: Hitchlock cover, Locking bolt body, Locking bolt lock holder with three keys, High security plastic hitch ball, Fitting instructions and warranty card.