Model S251

Description Model S251 is our most affordable 2-5/16" trailer coupler lock because it slides right over the coupler flange and the lock core is integrated into the lock body. From an "A-frame" welded-on trailer coupler, to a straight bolt-on style trailer coupler, and even some adjustable couplers, the Model S251 fits a wide array of 2-5/16" stamp-formed couplers; and will provide a great level of security! You can key this lock alike to any of your other Proven Locks products. Designing the best coupler locks is not an easy task. We pride ourselves on producing a "glove like" fit coupler lock. Rest assured that Proven Industries trailer lock products will leave you with simply the best coupler lock on the market. In addition, this lock body is made in the USA! Lock Core Cobra 7 (Standard) The Cobra 7 is a patented key system that was developed for the high-security needs in the vending industries. The COBRA tubular keyway is like no other with its 7 sided tubular keyway, this uniq