Will these fit my wheel studs without modification?

M12x1.5 is a common thread pitch, but always verify against your vehicle's hub spec before installation. If your studs are a different thread pitch or diameter, these won't thread on properly — cross-check with your owner's manual or wheel supplier first.

Do I need to apply any coating or paint before installing these?

They ship finished in black. No prep or paint needed — install straight out of the box. If you plan to powder coat or refinish them later, that's a separate project.

Can I use these as a full replacement set for all four wheels?

Twenty lug nuts gives you coverage for five wheels at four nuts each, or four wheels with five nuts per wheel if your setup requires it. Count your total stud positions before ordering to confirm this set covers your needs.