5 Pack Office Chair Caster Wheels 3/8 Inch Threaded Stem Heavy Duty 3 Inch Silent Rollers for Hardwood Floors

English System 3/8 inch Stem Swivel Casters, 5Pack Key benefits Direct replacement for furniture and chairs that use English system stems. Easy to install, quick rolling, and designed to protect floors. Quiet and smooth operation from tech elastic polyurethane wheels and internal bearings. Wheels resist trapping crumbs and hair and roll without marking surfaces. Durable steel body and coarsethread stem hold up under daily use. Five casters together support a total load of 650 lbs, suitable for heavier chairs and mobile furniture. Compatibility and size Thread type: English standard 3/8 inch with 16 TPI, Coarse Thread (US). Stud diameter: 3/8 inch. Stud length: 0.79 inch (20 mm). Wheel diameter: 3 inch swivel casters, sold as a 5pack. Not compatible with metric M10 stem sockets. Confirm your stem socket type before . Materials and performance Wheel material: tech elastic polyurethane for low noise, smooth rolling, and floor protection. Bearings: sealed internal bearings for consistent, loweffort movement. Body: steel structure for wear resistance and durability. Designed to roll smoothly without catching debris, reducing interruptions and wear. Practical applications Office chair replacement: Restore mobility and reduce noise for desks and workstations that use 3/8 inch English stems. Workshop or utility cart: Convert tool carts and equipment stands into mobile units that can handle heavier loads without scratching floors. Studio and transport cases: Add reliable caster mobility to instrument cases, art tables, and display stands for easier repositioning. What to check before ordering Verify that your furniture uses an English system 3/8 inch stem with 16 TPI coarse threading. If your socket is metric M10, these casters will not fit. Confirm the required stud length and wheel diameter match your application. Package contents Five 3 inch swivel casters with 3/8 inch diameter, 0.79 inch (20 mm) stud length, 16 TPI coarse thread stems.