Washington Revised Code Title 46. Motor Vehicles § 46.37.369. Wheels and front suspension

(1) No vehicle shall be equipped with wheel nuts, hub caps, or wheel discs extending outside the body of the vehicle when viewed from directly above which:

For the purposes of this section, a wheel nut is defined as an exposed nut which is mounted at the center or hub of a wheel, and is not one of the ordinary hexagonal nuts which secure a wheel to an axle and are normally covered by a hub cap or wheel disc.

(2) Tire rims and wheel discs shall have no visible cracks, elongated bolt holes, or indications of repair by welding. In addition, the lateral and radial runout of each rim bead area shall not exceed one-eighth of an inch of total indicated runout.

(3) King pins or ball joints shall not be worn to the extent that front wheels tip in or out more than one-quarter of an inch at the lower edge of the tire.