This is item 17630 – Thread bushing M30 designed for Lindner Jupiter and Saturn series. Manufactured from high-strength material 1.7225 and heat-treated to 30–32 HRC, this precision-machined component ensures a secure fit and dependable performance under high torque loads in the adjusting screw system. It conforms to OEM specifications and is usually in stock — if unavailable, lead time is approximately 3 weeks, with stock levels often exceeding dozens of pieces ready for delivery.