METOWARE Trailer Tongue Coupler Lock 1/4" Dia, 3-1/2" Span — Push-to-Lock Tubular Key, Weather-Resistant

When you need a small but reliable way to prevent unauthorized hitching, this METOWARE coupler lock combines a 1/4" diameter pin and a 3-1/2" span with a reinforced tubular core and water‑resistant features. It’s built for daily towing use and for long exposure to roadside conditions without seizing or corroding. The design prioritizes fast operation, corrosion resistance, and straightforward installation so you can lock and go.

How does the push‑to‑lock mechanism simplify trailer security?

The lock installs in seconds: push the pin through the coupler and the head snaps into place without using the key. To open, insert the tubular key and rotate slightly and the pin releases — no fumbling, perfect for cold or wet conditions. This makes securing your trailer faster and reduces the chance you’ll leave it unattended unlocked.

• Push‑to‑lock operation for one‑handed installation
• Quick-release with tubular key for secure opening
• Reduces time parked with an unsecured coupler

What materials and weatherproofing keep the lock working outdoors?

The body uses heavy‑duty steel and a reinforced zinc alloy tubular core to resist bending and tampering. Electrophoretic paint on the surface provides a uniform, corrosion‑resistant finish, and a watertight rubber cap shields the keyhole from water and grit. Together these features help the lock survive rain, snow, and salty road spray without rusting or jamming.

• Heavy‑duty steel construction for strength
• Zinc alloy tubular core to improve lock resistance
• Electrophoretic paint plus rubber cap for rust protection

Will this lock fit my trailer and how portable is it?

The pin diameter is 1/4" and the effective span (length) is 3-1/2", sizes commonly compatible with many coupler and hitch configurations. Its compact dimensions make it easy to stow in a pocket, glovebox, or trailer compartment. Because it’s lightweight yet robust, it’s suitable as a daily carry lock for trucks, camping trailers, and utility trailers.

• 1/4" diameter pin for standard coupler holes
• 3-1/2" span for common hitch spacing
• Small, pocketable size for convenient transport

What comes in the package and how is the lock keyed?

The package includes one 1/4" diameter lock pin with a 3-1/2" span, a rotating lock head with a waterproof rubber cap, and two tubular keys (one standard, one spare). The tubular key system increases pick resistance compared with simple flat keys and gives you a backup key for emergencies. The rotating head allows more flexible orientation when installed.

• One lock pin (1/4" × 3-1/2")
• One 361° rotating lock head with rubber cap
• Two tubular keys (one spare) for backup

This lock is built to give dependable, low‑maintenance protection without bulky hardware or complex installation. The combination of push‑to‑lock convenience, tubular key security, and weatherproof finishes delivers an effective deterrent against casual theft and accidental unhitching.

Who is this for: The METOWARE Trailer Tongue Coupler Lock is ideal for trailer owners, weekend campers, contractors, and anyone who tows frequently and wants a compact, weather‑resistant locking solution. If you value quick installation, rust resistance, and a smaller, easy‑to‑carry lock for daily use or long hauls, this product fits those needs.