QWORK Cambar Lock 45-inch Zinc-Plated Trailer Cam Bar — Single-Hinge, Rubber Grip

The QWORK 45" zinc-plated cambar (cam bar) lock secures folding ramp and single-hinge trailer doors with a heavy-duty latch, rubber grip, and included mounting hardware.

Built for cargo trailers, RV haulers, and folding ramp doors, this 45-inch cambar door latch offers corrosion-resistant zinc plating and a robust single-hinge design. It replaces worn or missing cam bars and installs quickly on trailer doors that accept a 3 1/4" spacing between hinge holes. The rubber handle improves grip for loading and unloading while the supplied mounting hardware simplifies setup.

How does the QWORK cam bar lock strengthen a trailer ramp door?

The cambar keeps the ramp or cargo door latched tightly against the frame to reduce movement and potential damage while the trailer is in transit. Its zinc plating resists rusting in exposed conditions, and the single-hinge construction provides a straightforward anchor point that minimizes play.

• 45" bar length for standard ramp and cargo doors
• Zinc plated finish for corrosion resistance
• Single hinge point for reliable, repeatable alignment
• Compact hardware set included for secure mounting

Will this cambar fit my trailer door and how easy is it to install?

The bar is designed for doors using a 3 1/4" distance between hinge mounting holes and installs with basic hand tools. The kit comes as a one-piece pack with mounting hardware and a rubber handle already attached, so many users can complete the swap in under an hour.

• 3 1/4" hinge-hole spacing specification for compatibility checks
• Pre-drilled holes align with standard hinge layouts
• Includes screws/bolts for immediate installation
• Simple hand tools required; no special equipment needed

What are the everyday benefits of the rubber handle and zinc finish?

The rubber handle gives a non-slip grip when opening or closing heavy ramp doors, which improves safety and comfort during repeated use. Zinc plating protects the metal from moisture and road salts, extending service life in outdoor environments.

• Soft rubber reduces hand fatigue and improves grip
• Zinc plating guards against corrosion and surface wear
• Durable construction tolerates frequent operation
• Low-maintenance finish—wipe clean, no painting required

Can the QWORK cambar be used on RVs and other haulers?

Yes — it’s suitable for a range of trailer types including cargo trailers, RV haulers, and utility ramps provided the door design accommodates a 45" bar and the stated hinge spacing. Its straightforward design fits common retrofit and repair needs.

• Works with folding ramp doors and single-hinge access doors
• Common retrofit solution for trailer maintenance or upgrades
• One-pack supply ideal for replacing a single door latch
• Durable enough for seasonal and year-round use

Who is this for? The QWORK 45" cambar cam bar lock is aimed at trailer owners, fleet managers, RV enthusiasts, and DIY mechanics who need a durable, easy-to-install latch for ramp or cargo doors. If you maintain trailers for work or recreation and want a corrosion-resistant, reliable locking bar with a comfortable handle and included mounting hardware, this product is designed to meet those needs without complicated modifications.