Do I need special bolts or fasteners to mount this?

The step mounts to your hitch receiver, but specific hardware requirements depend on your receiver's design. Check your hitch documentation or test-fit the step before purchasing fasteners.

Will this step support my weight?

It's built as a load step for vehicle loading — rated for typical stepping and cargo access use. Don't use it as a climbing platform or handholds for anything beyond brief weight distribution during loading.

Does the powder coat need any prep before I install it?

The black finish is ready to bolt on as-is. If you store it long-term, keep it dry to prevent surface oxidation where edges meet the receiver.