Do these use the factory bolt holes?

Yes. These mount at factory rocker and wheel arch points — no drilling or welding required. Bolt straight on with basic hand tools.

Will these need paint or primer before install?

Test-fit first to confirm alignment and clearance. If the finish doesn't match your truck, plan for paint prep and a topcoat before bolting on permanently.

What hardware comes in the box?

The guards themselves are included. Fasteners are not confirmed — check your truck's service manual for the correct bolt spec and torque values for your model year.