A-SR51 - 18"H x 16"D x 48"W - Aluminum Truck Super HD Trailer Toolbox, All Powder Coated MX-Black Finish, All Smooth Body and Diamond TP Finish Single Drop Open Door with Chains and Double SS DT-T-Handle Locks.

Underbody Trailer Boxes are Heavy Duty Trucker Grade for Premium Buyers. Boxes have Superior Track record for Longevity Grade and remaining Water-Tight and Theft-Resistant. 

Boxes are Constructed with High Strength Aluminum Fully Seam Welded for added Strength.  Comes with Stainless Steel Hardware like DT-T-Handle Locks and Stainless Steel Continuous Hinges. Door Support with Chains to Provide Superior Strength and Break-In Protection.

Boxes are mounted on side of Trailer Frame or under and above Trailer Deck. Use this Box to Store your Chains and Binders and other misc. tools you need for your Trailer. This Box feature Rain Gutter with Durable Bulb-Type Automotive Sealing Door Gaskets.

Underbody Boxes come in various sizes, styles, materials & finishes.

Features: Aluminum Body and Door with Chains. Powder Coated with Zinc Epoxy Primer and MR Powder Baked Topcoat Finish. Rain Gutters and Bulb-Type Automotive Sealing Door Gasket.

Made in the USA - Most Superior Boxes on the Market Today - Compare Material Thickness for it will tell you a lot!

Boxes can be mounted on Flatbed, Trailer or Contractor Professional Service Vehicles. Use this Box to make your pickup into a Service Vehicle without spending high dollars on Utility Service Bodies.

Options: Inside Shelves with or without Adjustable Compartment.

Boxes comes in various sizes, styles, materials, finishes and are available in durable Steel, Aluminum Diamond Tread and Smooth Finish.

Mounting Kit Use:

For C-or I Frame Mounting Kit purchase: Part Numbers M2100C or M2100I.

For Under Deck Mounting Kit purchase: Part Numbers M2450UD Series Brackets.