This is a coupling lock with 2 keys. Ideal for adding security to your trailer or caravan. The lock simply fits into the hitch, remove the key for added security when towing and when the trailer is unhitched.
eBay
Wire Lock Pin Heavy Duty Safety Coupler Shaft Locking Pins Hitch Pto Pin Round Loop Wire Lock Trailers Pin for Farm Lawn Garden
Aliexpress UK
Zinc alloy tubular lock core and more solid round key also help to improve security of the black coupler lock. 1 x Trailer Hitch Coupler Lock. Application of the 1/4 Trailer Pin Lock: Fits latch-type couplers for towing boat truck RV car.
eBay
10Pcs Brooch Pin Safe Keepers Pin Locks Pin Backs Clasp Locking Pin Keeper Backs Locking Pin Backs With Wrench Tools
Aliexpress UK
Like a hitch pin and clip, hitch lock is designed to insert into the fastener hole in the side of a receiver tube in order to hold a ball mount or hitch-mounted accessory in place. It allow you to lock your ball mount into your trailer hitch, deterring theft and preventing anyone from detaching your trailer at the ball mount and towing away your property without yourpermission.
eBay
10 Pieces Pin Keepers Pin Locks Pin Backs Locking Clasp Locking Pin Keeper Backs Locking Pin Backs Locking Clasp
Aliexpress UK
Supports towing load up to 800KG. Pulling Load Capacity: 800KG. 1 x Trailer Towing Hitch Coupling Tow Bar Ball with Pin Lock. Part Subtype: Trailer Hitch. Type: Towing. Part Type: Towing.
eBay
10/100pcs Brooch Pin Safe Keepers Pin Locks Pin Backs Clasp Locking Pin Keeper Backs Locking Pin Backs With Wrench Tools
Aliexpress UK
Cylinder lock prevents removal without key. One Year Warranty. 1 Year Warranty We provide one year warranty.
eBay
10 Pieces Pin Keepers Pin Locks Pin Backs Locking Clasp Locking Pin Keeper Backs Locking Pin Backs Locking Clasp Sliver
Aliexpress UK
1 Set x Trailer Hitch Pin Lock. Features : Trailer hook lock, heavy duty, anti-theft, waterproof, anti-fouling, rust-free, auto parts. Type : Trailer Hook Lock. No need to drill or install, just slide the pin and lock it.
eBay
10pcs Locking Pin Back Locking Pin Keeper Clasp Metal Pin Backing for Brooch Lapel Pin Lock Accessories
Aliexpress UK
Built to withstand outdoor use, it suits driveways, storage yards and work sites where caravans and trailers are left unattended. An all‑purpose hitch pin lock for trailer and caravan owners that secures the kingpin to prevent unauthorised hitching and theft.
eBay
NINDEJIN 3-50pcs metal dowel pins stainless steel m2 m2.5 m3 m4 m5 m6 m8 m10 parallel pins solid cylinder lock pin GB119
Aliexpress UK
Easy to Use: You simply snap the lock onto the trailer hook, then insert the key into the lock core and turn it 180 degrees, and the kingpin lock is securely installed. Heavy Duty Steel: Made of heavy steel, welded structure, durable and difficult for thieves to pry open.
eBay
304 Stainless Steel Cylindrical Pin M1 M1.5 M2 M2.5 M3 M4 M5 M6 Shaft Solid Fixed Metal Rod Positioning Pin Fixed Lock Pin kit
Aliexpress UK