This is a 1PCS SI8T/K PHSA8 Right Hand Ball Joint Metric Threaded Rod End Bearing SI8TK. It is a singlepiece rod end bearing with a ball joint, designed for use with metric threaded components in a righthand orientation. The bore options span 5 mm to 20 mm, allowing you to match shaft diameter precisely. Color code PHSA25 and the rightthread configuration are included in the model designation SI8TK / SI8T/K PHSA8. Key features and benefits Ball joint rod end bearing for a secure pivot connection that accommodates angular movement in linkages. Righthanded metric female thread for straightforward installation with standard metric studs or threaded rods. Wide bore size range (5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm) to fit a variety of shaft diameters. Color PHSA25 for identification or coating reference, with model details SI8TK, SI8T/K PHSA8. One piece per package, simplifying inventory and replacement in assemblies. Suitable for precise, lowfriction articulation in compact spaces and in metric systems. Key attributes Functionality: Right hand ball joint rod end bearing enabling pivoting connections with angular tolerance in mechanical linkages. Compatibility: Metric threaded rod end with female thread; designed to pair with corresponding rightthread metric components. Size: Bore options available from 5 mm to 20 mm; select the bore that matches your shaft diameter. Material and build: Specific material not disclosed in the listing; designed as a standard rod end bearing within the SI8T/K PHSA8 family. Performance: Ball joint provides smooth articulation and reliable movement under typical linkage loads in hobbyist and lightindustrial applications. Applications and use cases Robotics and automation linkages: connects actuators or servo arms to moving joints, allowing needed angular adjustment while transmitting motion. Hobbyist and fabrication projects: suitable for RC models, 3D printer arms, camera rigs, or custom machinery where a pivot joint is required. Maintenance and : worn rodend joints in control linkages, steering arms, or other metricthreaded assemblies to restore precise motion and tolerance. What you need to know for installation Ensure you select the bore size that matches your shaft diameter for proper fitment. Use standard metric male threaded components to mate with the female righthand thread. Verify the operating environment and load expectations align with the rod end bearing's intended use; the listing provides the model and sizing details to match your project requirements. This description maintains the product's brand and feature set: SI8TK / SI8T/K PHSA8, righthand ball joint, metric threaded rod end bearing, bore options 5–20 mm, female thread, color PHSA25, and quantity of 1 piece.