Stop ball mount theft before it starts. The B&W Hitches TS51230 is a hardened steel 5/8-inch receiver lock designed to secure your hitch ball mount or other hitch-mounted accessories inside a standard 2-inch receiver. It drops in where your standard hitch pin goes, locks with a key, and makes drive-off theft of your ball mount, weight distribution head, or bike rack significantly harder without adding bulk or complexity to your setup.
If you run a quality ball mount, a weight distribution head, a cargo carrier, or a bike rack, you already know how easy it is for someone to walk up, pull the hitch pin, and walk off with your gear. The B&W BOLT receiver lock replaces your standard 5/8-inch hitch pin with a keyed locking cylinder -- same footprint, same fitment, dramatically better security.
B&W Hitches is best known for their fifth wheel hitches and gooseneck solutions built to serious towing standards. The BOLT lock line carries that same attention to material quality and fit. This is not a flimsy padlock-and-cable setup; it is a solid locking pin purpose-built for the 5/8-inch cross-pin hole found on virtually all 2-inch receiver-style hitches.
Replaces the standard 5/8-inch hitch pin in any 2-inch receiver tube, securing ball mounts, bike racks, cargo carriers, and more.
Resists cutting and sawing. The shackle and pin body are hardened to stand up to bolt cutters and hand tools better than standard pins.
Ships with keys. The cylinder locks and unlocks cleanly without tools -- just insert and turn. No combination to forget on the road.
Designed to fit where your factory-style hitch clip pin already lives. No drilling, no adapter, no modification to your receiver or ball mount.
B&W offers the BOLT locking hitch pin as a standalone security accessory that pairs naturally with their Turnoverball, Companion, and other fifth wheel hitch systems, as well as with conventional 2-inch receiver ball mounts from any manufacturer. Part number TS51230 is the 5/8-inch keyed variant -- the size that matches the standard cross-pin hole on full-size 2-inch receiver hitches common to trucks, SUVs, and Class A and Class C motorhomes.
If you are running a 1-1/4-inch receiver (common on smaller SUVs and some minivans), that application uses a smaller pin diameter and this lock will not fit. TS51230 is specifically for the 2-inch receiver class with a 5/8-inch pin hole.
Because this lock uses the same 5/8-inch diameter as the standard hitch pin, it is compatible with ball mounts, weight distribution heads, cargo carriers, and bike racks from any brand -- Curt, Draw-Tite, Reese, B&W, Andersen, and others -- as long as the receiver is a standard 2-inch tube with a 5/8-inch cross-pin hole.
For RV owners, receiver security matters in a few specific situations:
Most RV campground theft of hitch accessories happens quickly and opportunistically. A keyed locking pin is not impenetrable, but it eliminates the quick grab-and-go option that makes unattended hitches a target. Pair it with a coupler lock on your trailer for layered security at the campsite.
Installation is straightforward. Slide your ball mount or other accessory into the receiver tube, align the 5/8-inch cross-pin holes, insert the BOLT lock pin, and turn the key to lock. The key can be removed in the locked position only, confirming the lock is engaged. To remove, insert the key, turn to unlock, and pull the pin free.