Check the listing for details. MASTER LOCK 5/8" RECEIVER HITCH LOCK 2 1/2IN SHACK #MAS1479DAT. Condition: New. Listed at 31.66 USD. Master Lock No. 1479DAT 5/8in (16mm) Class III/IV Barbell™ Trailer Receiver LockProduct FeaturesFits 5/8in (16mm) receiversUsable length of receiver pin is 2-3/4in (70mm)Push to Lock™ locking mechanism - push lock body onto pin firmly and remove keyWeather Tough® seal and water tight cap protects lock from moisture and dirtClass III/IV; 10,000 lb. Load Rating4-pin cylinder for added pick resistanceK1 Key BlankProduct DetailsThe Master Lock No. 1479DAT features a 5/8in (16mm) Class III/IV Barbell™ receiver lock. 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 Tough® seal and water tight cap provides additional protection from moisture and dirt. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.