Protect your trailer, RV or boat with the best. Atwood’s exclusive locks are the most durable and strongest locks on the market today. Durable: Locks are manufactured from stainless steel, ducted cast iron and heat treated steel to provide years of dependability to your trailer or RV. Components are treated and hardened to prevent damage and destruction by heat and freezing. Protective coverings keep dirt and debris out of the lock. The corrosion resistant materials and coatings were made for long term outdoor use in all climates. Secure: Atwood’s lock also includes high security Push and Lock unlock feature to prevent intruders from picking or/breaking the lock. With millions of individual key combinations, you can rest assured your key is unique to your lock. The same technology that makes our locks durable also makes them the perfect theft deterrent. The hardened tumbler and lock does not freeze and is difficult to damage by heat and conventional drilling methods.