Do these mount at factory rocker points, or do I need to drill?

These mount at factory rocker points — no drilling needed. Use the existing attachment locations on your truck bed frame.

Will the chrome finish hold up to salt and road spray?

Chrome is durable in normal conditions, but salt and heavy road spray will cause oxidation over time. Regular washing and occasional waxing will extend the finish significantly.

What fasteners do I need for installation?

Mounting hardware is not included in this set. Refer to your vehicle's service manual or contact the manufacturer for the correct bolt size and torque specs for your truck's rocker attachment points.