Ball 4x9x12.5mm (4) (ARA330583)

Ball End Pivot Ball Set — a four-piece pack of steel pivot balls sized with a 9 mm diameter, a 4 mm through-hole, and a 12.5 mm overall length. These spherical joints are designed to serve as durable pivot points in RC linkages and suspension, delivering smooth movement and reliable performance where articulation matters.

Manufactured from steel for maximum crash resistance and long-lasting durability, each ball provides a sturdy mounting point for ball-end connectors. The 4 mm through-hole accepts standard fasteners, and the 9 mm ball diameter with the 12.5 mm length offers versatile fitment across common sockets, making this four-pack a practical upgrade or replacement for hobby builds.