Do I need to drill holes to mount this cover?

Installation method not specified — test-fit the clamps at your factory bed rail attachment points before committing to fastening. Most tri-fold tonneau covers mount without drilling, but verify fit first.

Can I paint or seal this cover before installation?

Prep and finishing steps are not specified for this product. If you plan to paint or weatherproof it, do that work before installation to avoid getting adhesive or fasteners on finished surfaces.

Does this cover come with mounting hardware?

The tonneau cover assembly is included. Confirm that clamps and fasteners are in the box before you start — hardware quantity and type are not detailed in the product specs.