CZC AUTO Hitch Locking Pin 5/8" for 2" & 2.5" Receivers — 3.5" Dogbone, Keyed Alike, Weatherproof

CZC AUTO's hitch locking pin secures 2" and 2.5" trailer receivers with a 5/8" pin and keyed-alike convenience.

Keep your hitch-mounted gear safe with a compact, heavy-duty locking pin designed for Class III and IV receivers. This dogbone-style lock uses a 5/8" diameter pin and a 3-1/2" effective length to fit standard 2" and 2.5" receiver tubes. Built for frequent use, the lock combines a hardened carbon steel body with a rotating head and weatherproof features for reliable locking on racks, bike carriers, cargo trays, and ball mounts.

How tough is the CZC AUTO hitch lock for daily towing use?

The lock is made from electrophoretic-painted carbon steel that resists bending and surface corrosion. A zinc-alloy tubular core and covered key slot reduce moisture and dust intrusion so the mechanism stays smooth after repeated exposure to road and weather conditions.

• 5/8" diameter hardened pin resists shear and bending
• Electrophoretic paint finish for corrosion protection
• Rubber key cap keeps out water and dirt
• Rotating head for easier handling and alignment

Does this lock fit my 2" or 2.5" receiver accessories?

Yes — the 3-1/2" effective length and dogbone-style profile are sized to work with most Class III and IV hitch receivers and common hitch-mounted accessories. It secures hitch racks, bike carriers, cargo trays, hitch balls and tow mounts designed for 2" or 2.5" tubes.

• Compatible with 2" and 2-1/2" receiver tubes
• Works with bike racks, cargo trays, and hitch-mounted accessories
• Dogbone shape for clearance with different shanks and receivers
• 3-1/2" effective pin length fits standard receiver holes

How easy is it to lock, unlock and manage multiple hitches?

The CZC AUTO set is user-friendly: each lock uses a tubular key and ships with two keys per lock for daily convenience. For multi-lock users the package supports a keyed-alike option, letting you open several locks with a single key to simplify access and reduce key clutter.

• Comes with two keys per lock for spare or frequent use
• Keyed-alike option allows one key for multiple locks
• Simple push-and-pull operation confirms engagement
• Tubular key design resists tampering and makes unlocking quick

What weather protection features are built into this hitch pin?

The lock head includes an all-weather rubber cap over the keyway to shield the mechanism from rain, salt, and road grime. The painted steel finish and zinc alloy core help slow corrosion so the lock remains functional in outdoor environments.

• Rubber key slot cap prevents moisture and dust entry
• Electrophoretic paint reduces surface rust and chips
• Zinc alloy lock core balances durability with smooth operation
• 360° rotating head reduces stress and wear during use

Who is this for: The CZC AUTO 5/8" hitch locking pin is made for vehicle owners who use 2" or 2.5" trailer receivers and want a compact, durable way to secure racks, bike carriers, hitch balls, and cargo trays. It suits daily commuters, weekend campers, bike enthusiasts, and anyone who prefers keyed-alike convenience for managing multiple locks. With a 30-day money-back window and a 12-month warranty for quality-related issues, it’s also a practical choice for fleet operators and rental services that need straightforward, replaceable security hardware.