Universal Roof Box U-Bolt Clamps Kit | 4 U-Bolts, Straps, Hardware | For Mounting Cargo Carrier To Rooftop Rack

Got a rooftop cargo box or carrier but missing the mounting hardware? This universal U-bolt kit has you covered. It includes 4 heavy-duty, galvanized steel U-bolts with an inner width of about 85mm (3.34 inches) and an outer width of 90mm (3.54 inches). This size is designed to clamp around most factory roof rack crossbars or aftermarket bars up to about 40mm (1.57 inches) thick. The kit also comes with 8 lock nuts, 4 rubber washers, 4 plastic backing plates (to protect your car's roof/rails from scratches), 2 extra straps for securing loose items, and even a decorative patch. No drilling needed—just assemble the U-bolt around your crossbar and through your cargo box's mounting points, add the washer and plate underneath, and tighten the nuts. It's a strong, rust-resistant solution for securing roof boxes, baskets, or kayak racks to SUVs, hatchbacks, and off-road vehicles. Get that extra storage space locked down safely.