1. a vertical bolt that connects the front axle of a vehicle to the chassis, allowing the front wheels to turn
Usage: automotive; mechanical

Examples

• The mechanic replaced the worn kingbolt to fix the steering problem.
• A damaged kingbolt can cause dangerous wobbling in the front wheels.
• The truck’s kingbolt needed lubrication after years of heavy use.
• Without a properly functioning kingbolt, the vehicle cannot steer safely.
• The kingbolt connects the steering mechanism to the front axle assembly.