For trailer security products, turn to LockMasters. From pintle hitch locks to cargo door locks, there's no easier, more efficient way to find the security products you need, at a competitive price, from one reliable source. Click on any of the trailer security locks below for specific information on the products now available through our site, many of which can be shipped the day they are ordered. Not sure what to choose? Our knowledgeable team can help you figure out what type of trailer security lock will best suit your needs.