Heavy-Duty Steel Construction: Made from thick structural steel with black powder coating, these mounting brackets for underbody truck tool boxes resist corrosion and impacts, keeping your underbody toolbox secure for years.
Right-Angle Welded Braces: Our mounting brackets for truck trailer underbody tool boxes feature welded L‑shape braces that hold 90° corners under vibration and heavy loads, making them sturdier and more durable than bolted designs.
Universal Hole Pattern: Pre‑drilled to fit standard bolt patterns, these steel mounting brackets install quickly – no drilling or modifications needed. Align perfectly with underbody truck and trailer tongue boxes.
Complete Hardware Kit: The mounting brackets for truck & trailer tool box include all screws, spacers and bolts for a secure, rattle‑free fit.
Solid Underbody Support: Each bracket measures 18"x18". Sold as a set of two, they support your truck, trailer, or flatbed toolbox from underneath. Fits most trucks, utility trailers, and flatbeds.