Will these fit my factory studs?

M12 x 1.5 is a common metric thread pitch found on most modern vehicles, but verify your stud size before ordering. If your car runs a different pitch (M12 x 1.25, for example), these won't thread on properly.

Do I need a socket that fits the extended design?

The extended cap may not fit into a standard lug socket due to the length. Measure your socket opening against the nut diameter before installation, or use a deep socket designed for acorn nuts.

Will the red anodize fade or chip?

Anodized aluminum is durable and resists corrosion, but road salt and brake dust will dull the finish over time. A light polish keeps them looking fresh. Heavy impact damage can expose the aluminum underneath, though it won't affect function.