Do these mount directly to my factory roof rails?

Yes — these crossbars attach at factory mounting points on your roof rails. No drilling or modification required. You may need fasteners depending on your rail type; verify your specific roof rail design before ordering fasteners separately.

Will these handle a roof basket or cargo box?

Aluminum crossbars are rated for cargo accessories, but weight limits depend on your vehicle's roof load capacity and how the basket or box mounts to the bars. Check your owner's manual for max roof load, then verify the accessory's mounting method matches these crossbars' attachment style.

Does this come with mounting hardware?

The crossbar pair is included; mounting hardware is not confirmed in this listing. Measure your factory roof rails and confirm the fastener type and size before purchase so you source compatible bolts and clips separately if needed.