Designed with a focus on durability and fit, the GPM GF004S steel king pins reinforce the steering pivots on the Tamiya GF01 series. These steel pins offer a firmer mounting point for steering components, helping to maintain consistent geometry under load and extend the service interval of linked parts. Size 5mmx6.2mmXM4 ensures compatibility across several Tamiya platforms including TA01, TA02, TA03 and TL01.