Lug nuts: seat type has to match the wheel
A lug nut does not clamp the wheel with its threads. It clamps with its seat — the tapered, rounded or flat face that pulls the wheel against the hub — and the seat has to match the wheel's holes exactly.
Fit a conical nut to a wheel machined for a ball seat and the contact patch is a ring instead of a cone. It will feel tight and it will loosen. Aftermarket wheels frequently need different nuts from the factory ones, and the wheel manufacturer publishes which. Spline-drive nuts suit small wheel holes; locking lug nuts replace one per wheel and are worth having on anything expensive.
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Torque, and the fifty-mile recheck
Torque to the manufacturer's figure with a proper wrench, in a star pattern, with the vehicle's weight off the wheel. An impact gun over-torques, which stretches studs and warps rotors.
Re-check after roughly fifty miles on anything newly fitted — new wheels and spacers both settle. Thread pitch and seat type are published numbers; neither is guessable from a photograph. We stock 36 lug nut and hardware parts from 2 brands.