2.375 Inch MRI Safe Casters – 3/8 Inch Threaded Stem – Set of 4 – Service Caster

Wheel: 2-3/8" - Gray Non-Marking Thermoplastic Rubber Capacity: 66 lbs./caster Threaded Stem Size: 3/8" diameter - 16 TPI x 3/4" length Mounting Height: 2-11/16"You may also like 3.5 Inch Thermo Rubber Wheel Swivel 1-1/2 Inch Expanding Stem Caster Set 2 Brakes.