HRXMX55P08 Hinge Pin X Maxx

Hardened steel threaded hinge pin set sized at 4 mm × 56 mm for suspension joints in large‑scale X Maxx class trucks. Precision ground and heat‑treated carbon steel construction provides greater strength and durability than stock plastic or smooth pins. Threaded ends paired with nylon‑insert lock nuts help prevent the pins from backing out during hard use and high‑impact landings. Designed as a direct replacement for standard suspension hinge pins to improve reliability and reduce maintenance.

• Set of four threaded hinge pins sized 4 mm × 56 mm for X Maxx‑style suspension
• Heat‑treated carbon steel for wear resistance under load
• Centerless ground for smooth fit through A‑arm bushings
• Includes four M3 nylon‑insert lock nuts to secure pins in place
• Designed to reduce pin loosening common with stock hinge pins
• Works with factory and many aftermarket arms without modification
• Improves suspension durability for off‑road use