Replacement Office Chair Caster Wheels by 8T8, Set of 5, Rubber Chair Casters with Threaded Stem 3/8''-16X1"(NOT METRIC M10), Quiet and Smooth Gliding,Safe for Woood Hardwood Carpet Floors

Standard 3/8"-16X1" (NOT METRIC M10), Coarse Thread (US): the stud diameter of this wheel is 3/8", stud length is 0.79" (20mm), and it's imperial, not metric.

If the stud of your wheel is metric, M10x1.5 pitch also work, but it's sloppy.

Imperial 3/8x16 TPI fits better.

NO CHAIR MAT NEEDED ANYMORE – Our desk chair wheels replacement will NEVER scratch, smudge or damage your floors.

Enjoy a safe glide across wood, hardwood, vinyl, laminate, tile and carpet floors ROLLING AS QUIET AND SMOOTH AS A MOUSE: Wheel materials are made of high-quality soft polyurethanes, which are high mechanical strength, wear resistance, shock absorption and low-noise.

Good resilient rubber base also has extra anti-dirty and self-cleaning actions EASY TO INSTALL: Simply screw your old casters out, then screw the new wheels in, fit for various M10 caster chairs YOUR TOTAL SATISFACTION IS OUR NO1 PRIORITY– We put all our effort to ensuring good quality and service.

If you have any questions, please don't hesitate to our Customer Support by clicking on our seller name "8T8" that you should find on the right side under the "Buy Now" button.