Replace# 812103 Wheel-Balancer Hub Wing Nut - Compatible with Hunter DSP Models (40mm X 8mm Shaft Thread Pitch), DSP7700, DSP8500, DSP9000, DSP9200, DSP9500, DSP9600, GSP9700. Perfect Compatibility: Hub Nut compatible with Hunter Wheel Balancers with 40mm X 8mm Thread Pitch Shafts, including DSP7700, DSP8500, DSP9000, DSP9200, DSP9500, DSP9600, GSP9700.