Hello,
I just bought a set of boards taken off of a 2016 Supercab to put on my 2021. The guy I bought them off of was missing one of the brackets and the hardware to attach them to the truck. I believe I’ve located the correct part numbers for the bracket and nuts to attach the brackets to the truck, but can’t seem to find info on the bolts that attach the board to the bracket. They are the non-powered black platform style boards.

Any info is greatly appreciated, thanks.

 

On the 15-20's, the body has the bolts built in. So the only hardware you need to mount the boards on a 15-20 is the nuts.

I have zero idea what the mounting areas look like in the body of a '21.

 

Everything I’ve read and seen says that’s 15-20 boards mount right up to a ‘21. I’m not asking about mounting it to the truck though. The hardware I’m after if for mounting the running board to the bracket itself. On the complete one I have, it looks like two bolts underneath.

 

Take one of the bolts out of a complete one and just get more of the same for the other from a hardware store.
I would get stainless steel if possible but I am a bit ****.

 

I have factory power running boards on my truck. They bolt up to the bottom of the cab with permanently mounted studs so only nuts are required. I would look under your cab to see if you have the same studs on your truck.