Do I need mounting hardware to install this, or does it come with everything?

The box and lock hardware are included. Mounting hardware to secure it to your bed rails is not confirmed — verify your bed's mounting points before ordering and source fasteners separately if needed.

Will this aluminum box need to be painted, or can I use it as-is?

Aluminum can be used bare or painted depending on your preference. If you want a finished look, standard spray paint or powder coat works fine — just clean and lightly scuff the surface first.

What's the return window if this doesn't fit my truck bed?

Check ModSupply's return policy on your order confirmation. Before installation, test-fit to confirm it aligns with your bed width and mounting points.