QWORK 45" Zinc-Plated Cam Bar Lock for Cargo Trailers — Folding Ramp Door Latch with Rubber Grip, Single Hinge 3.25" Spacing

The QWORK 45" zinc-plated cam bar lock secures folding ramp doors on cargo trailers and RV haulers with a single-hinge-point design and included mounting hardware.

Built for trailer owners who need a durable, corrosion-resistant latch, this cam bar (also called a cambiar or cam bar) combines a straightforward mounting footprint with a rubber-grip handle for easy operation. The 45-inch bar arrives as a one-pack assembly that installs quickly and provides a familiar, heavy-duty solution for cargo and RV ramp doors. Zinc plating protects the metal surface from the elements while the single hinge point keeps door movement controlled and reliable.

How does this cam bar lock fit my trailer ramp door?

The QWORK cam bar is designed for standard 45" applications and uses a compact hinge spacing to match common trailer door preparations. With a 3 1/4" center distance between hinge holes, it aligns to many existing cutouts and simplifies retrofits.

• 45" overall bar length suited for typical folding ramp doors
• 3 1/4" distance between hinge holes for common mounting patterns
• Includes mounting hardware to minimize extra parts purchases
• Single hinge point reduces installation complexity

What materials and finishes protect the latch outdoors?

This cam bar lock uses a zinc-plated finish on the metal parts to resist rust and extend service life in exposed conditions. Zinc plating is a cost-effective protective layer that preserves the underlying steel against moisture and road salts without adding significant weight.

• Zinc-plated steel for corrosion resistance and long-term durability
• Robust construction suitable for trailer and RV exterior use
• Finish reduces maintenance compared with bare steel parts

How does the handle and hinge design make daily use easier?

The latch features a rubber-coated handle shaped for a comfortable grip, letting you open and close the ramp with less hand fatigue and more control. The single-hinge point keeps the cam action smooth and predictable, improving alignment when securing the door.

• Rubber handle for a non-slip, ergonomic grip
• Single hinge point for consistent cam movement and alignment
• Compact profile to avoid snagging during loading and unloading

What comes in the box and how easy is installation?

This product ships as a one-pack cam bar with the necessary mounting hardware, making it ready to install on compatible ramp doors. The straightforward design requires basic hand tools and a few holes for bolts, so most DIYers or mechanics can complete the swap quickly.

• One 45" zinc-plated cam bar (cambar / cambiar) included
• Mounting hardware packaged with the bar for immediate installation
• Simple bolt-on installation—no specialty tools required

Who is this for: The QWORK 45" Cam Bar Lock is aimed at trailer owners, RV haulers, fleet managers, and DIY repairers who need a reliable, weather-resistant latch for folding ramp doors. If you want a straightforward replacement or an upgrade that balances durability, grip comfort, and easy installation, this zinc-plated bar lock is built to meet daily use on cargo trailers and recreational vehicles.

Features:

• 45" Zinc Plated Bar Lock (Cambar / Cam Bar) for Trailers Cargo
• 3 1/4" distance between hinge holes
• Rubber handle, easy to grip and use
• Easy to install
• 1 Pack