The Master Lock No. 3794DAT features a trailer coupler lock, receiver lock and trailer coupler latch lock. The trailer coupler lock fits 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) couplers. The receiver lock includes the Push to Lock locking mechanism, easily used by pushing the lock body firmly onto the pin and removing the key. The Weather Toughseal and water tight cap provides additional protection from moisture and dirt. The coupler latch lock adjusts from 9/16in (14mm) to 2-3/4in (70mm) for added application flexibility. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.FEATURES Keyed alike trailer coupler lock, receiver lock and trailer coupler latch lock Trailer coupler lock fits 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) couplers Push to Lock receiver lock fits both 1/2in (13mm) and 5/8in (16mm) receivers Stainless steel trailer coupler latch lock is adjustable from 9/16in (14mm) to 2-3/4in (70mm) K1 Key Blank
