Does this step come with bolts to mount to my hitch?

The step assembly ships without fasteners. You'll need 2" receiver bolts—standard Grade 8 hardware works fine. Any hardware store stocks them, or check your hitch receiver documentation for the correct spec.

Will aluminum rust or corrode over time?

Aluminum naturally resists rust. It will oxidize (surface whitening) but won't rot through like steel. If you're in a salt-heavy climate, rinse it off periodically to keep it looking sharper longer.

What's the weight capacity on this step?

Load rating is not specified in the product data. Treat it as a grab step for leverage and single-person access—not a platform for standing tools or a second person. If maximum load matters for your use, contact support before ordering.