Aluminum OVERSIZE LOAD Sign on lightweight 5/8 square steel tubing frame. Textured BLACK Powder Coat. Smooth rounded corners. Sides swept back for smooth air flow. Universal mounting channels allow attachment to bumpers, grill guards, receiver hitches, etc.

We're developing mounting hardware and hitch adaptors for this.
 A wide variety of off the shelf hardware is available for use with the 'c' channel on the back of these signs.
Lowes/Home Depot, many electrical supply stores, Fastenal, etc carry the channel commonly known as Kindorf, Unistrut and Superstrut.
Flat plates, L plates and Pipe straps are a few of the pieces you can get. We don't carry these parts yet.
 

Call for information.
Price for SIGN only: $129-149*
*see options below

 

Available in Diamond-Grade
Retro-Reflective too! 
New lower price! Add just $35