Mechanics and fabricators, these M METERXITY rod end bearings are seriously heavy-duty! This 2-pack gives you reliable replacements for all kinds of applications - think hydraulic cylinders, forging machines, automotive shock absorbers, steering linkages, CNC equipment, and automation systems. Made from 45# steel with bearing steel ball heads, these aren't flimsy parts. The galvanized and chrome-plated surface treatment provides excellent corrosion resistance for long service life. The PHSB4 design features 1/4 inch bore with 1/4-28 right female threads, measuring 40x18x10mm. The locking and extrusion process with copper rings creates a solid, self-aligning structure that can handle composite loads while maintaining low noise and stable operation. Each set comes with jam nuts for secure installation. Perfect for when you need reliable motion control in demanding environments. Just make sure to confirm the size and thread type you need before ordering since getting the wrong thread can be frustrating. Whether you're building custom machinery or repairing existing equipment, these quality rod ends deliver professional performance without the professional price tag.