Do these mount at the factory attachment points?

Yes. These bolt at factory rocker locations — no drilling or welding required. Use the existing mounting holes on your extended cab frame.

What bolts and fasteners do I need to install these?

Mounting hardware is not included with this set. Check your truck's service manual or contact the manufacturer for the correct bolt size, grade, and torque spec for your model year.

Can I repaint the black end caps if they get damaged?

The black finish is powder-coated. Light scratches won't expose the base metal, but deep damage can be touched up with black high-heat spray paint — prep the area with 220-grit sandpaper first for adhesion.