'Kingbolt' definitions:

Definition of 'kingbolt'

noun

Bolt that provides a steering joint in a motor vehicle [syn: kingbolt, kingpin, swivel pin]

From: GCIDE

Kingbolt \King"bolt`\, n. A vertical iron bolt, by which the forward axle and wheels of a vehicle or the trucks of a railroad car are connected with the other parts. [1913 Webster]