Nerf bars bolts rusted...now what?

[matlocc]

2018 ram quad cab. The bolts that hold the bar to the mounting bracket rusted out. (I think these are an OEM option set I bought it used)
Bolts looked to be 1/4 or 3/8ths . Empty hole in the step tube are 1/2 or a bit bigger. Not threaded. No idea how to hold them on.
What are my options to hold them in place other than hose clamps or duct tape!
I love this truck and it looks mint. If I must buy new bars because of 3 rusted attachment bolts what do you guys recommend?

 

[rzr6-4]

Cut/torch, then weld, then drill. And if you don't have those tools then you'll probably just have to take it somewhere.

 

[DA67Goatman]

My originals use m6 bolts into riv-nuts in the stainless of the step.

 

[Jeepwalker]

What do the nerf bars actually look like?

Can you pop off a plastic endcap from the nerf bar? And then fab up a 1/4" thick plate a couple inches long, with a welded nut (or bolt?). And then slide the plate down inside the Nerf with a long rod? Until you have it where you need it. Then put your bolt into that plate?

I'm just thinking what I "think" your issue is. But I could be off-base. A pic would help.