Wheel Spindle Kingpin

A hardened metal pin, with or without a head designed to provide articulation between a stub axle and an axle-beam or a steering head to permit vehicular steering. It may be grooved, slotted, or threaded, to accommodate a locking device and may have lubrication facilities. Excludes pin, straight, headless; pin, straight, headed; pin, grooved, headless; pin, grooved, headed; and pin, tapered, threaded.