RKI US48CB 48" Steel Upper Side Toolbox Single Door Black

The RKI US48CB Upper Side Toolbox is a professional-grade storage solution designed to mount on top of truck bed side rails or any flat application. This 48-inch toolbox provides secure, weather-resistant storage without sacrificing valuable truck bed space.

Premium Construction:

• 14-gauge cold rolled steel construction with full arc welds (no spot welds)
• Five-stage metal pretreatment anticorrosion protection system
• Durable black polyester powder coat finish
• 14-gauge cold rolled steel door with inner stiffener for added strength

Heavy-Duty Hardware:

• Three stainless steel pillow block hinges with self-lubricating bushings and 5/16" hinge pins
• Full-size stainless steel recessed paddle latch
• Heavy-duty machine chain holds door horizontally and detaches to swing door down to 180 degrees

Weather Protection Features:

• Top panel forms a drip rail over the door with channel drain
• Knife edge door design with ribbed d-bulb seal creates full perimeter seal
• No interruption at door latch for superior weather resistance

What's Included: Mounting hardware included. Optional RKI Tray US sold separately for additional organization.

Backed by RKI's reputation for commercial-grade truck equipment and manufactured in the USA, this upper side toolbox delivers the durability and reliability that professionals demand.