METOWARE Trailer Coupler Lock 1/4" Pin, 3-1/2" Span — Tubular Key, Weather-Resistant

METOWARE Trailer Tongue Coupler Lock is a compact, heavy-duty 1/4" diameter, 3-1/2" span pin lock with a tubular key and push-to-lock operation that secures your trailer coupler quickly and resists the elements.

This trailer coupler lock from METOWARE combines robust materials and weather-resistant design to help deter theft and prevent accidental uncoupling while towing or parked. It fits most standard trailer tongues that accept a pin-style lock, and arrives as a set: a steel lock pin, a rotating lock head with a watertight rubber cap, and two tubular keys (one spare). Built finishes and lock-core choices focus on durability, easy everyday use and reduced maintenance on rainy or snowy trips.

How does the METOWARE lock keep my trailer tongue secure?

The lock uses a solid 1/4" diameter steel pin paired with a reinforced zinc-alloy tubular lock core to resist forced entry and wear. The tubular key design increases pick resistance compared with basic flat keys, and the rotating head helps prevent leverage attacks.

• 1/4" hardened steel pin provides core strength
• Reinforced zinc-alloy tubular lock core for improved tamper resistance
• Two tubular keys included — one for regular use, one spare
• 361° rotating lock head reduces leverage points

Is it easy to lock and unlock on the road?

Yes — the METOWARE coupler lock is built for quick, intuitive operation. The push-to-lock mechanism lets you secure the pin without inserting the key, and unlocking only requires a short turn of the tubular key to release the pin.

• Push-to-lock action secures the pin instantly
• Simple key turn ejects the pin for fast removal
• Compact size fits pockets or storage compartments for convenience

Will this lock stand up to rain, road spray and winter conditions?

The lock head has a waterproof rubber cap and an electrophoretic painted finish to reduce corrosion from moisture and road salts. These features keep water and grit away from the keyhole and slow surface rust on the pin for longer service life with minimal upkeep.

• Watertight rubber cap protects keyway from water and dirt
• Electrophoretic paint finish resists rust and chipping
• Durable materials suited to wet or snowy conditions

What size trailers and applications fit this pin lock?

The METOWARE pin lock measures 1/4" in diameter with an effective 3-1/2" span, making it compatible with many small-to-medium trailer tongues and couplers that accept a pin-style locking device. Its compact profile is handy for boat trailers, utility trailers, lawn equipment trailers, and seasonal storage situations.

• 1/4" diameter pin fits common coupler pin holes
• 3-1/2" effective span suits many compact trailer tongues
• Portable size ideal for stowing in glove boxes or tool bags

Who this is for: the METOWARE Trailer Tongue Coupler Lock is aimed at trailer owners who want a straightforward, portable locking solution that balances strong materials with weather protection and fast operation. It’s a practical choice for recreational trailers, small work trailers, and anyone who needs a reliable pin lock that’s easy to use, carries a spare key, and holds up to wet or winter driving conditions.