Can I remove the hex bolts of the mounting bracket of the LED floodlight and screw them back in after attaching the mounting bracket?

I bought 2 of your 20W UV floodlights. Can I remove the hex bolts of the mounting bracket and screw them back in after attaching the mounting bracket? Do these bolts screw into the threaded metal rather than hex nuts that will fall after I unscrew hex bolts?

As the hex bolts on the realUV™ LED Flood Light mounting bracket is not intended for removal, please note that doing so would be a non-supported product modification. 

That being said, as we believe that the metal holes used by the hex bolts on the bracket are threaded, the proposed installation should be feasible.