English System Stem Size: Our caster wheels are English Unit standard 5/16" with 18 TPI,Coarse Thread (US), the stud diameter is 5/16" and the stud length is 0.79"(20mm), if your caster wheel is Metric M8, this is incompatible, please check before buy.
Quiet & Smooth Roller:Hirate soft caster wheels made of high-tech elastic polyurethane, with internal bearings are quick rolling and the surface is sleek,wouldn't get stuck by crumbs,hair, wouldn’t damage on floors.
Heavy Duty Caster: Steel structures body is extremely hard wearing and resistant to dirt, 500 lbs capacity for 5 pack 2" casters, can be widely used for most chairs and other furniture with English Stem 5/16" only.
Multifunctional Casters: These caster wheels can be used for chairs with stem socket or any other tool car, cart.instrument cases, art tables, and so much more.
Valued Purchase: The Hirate branded color-boxed package comes with set of 5 caster wheel and few 5/16”-18 thread Screw Inserts.
