Hirate 3' Office Chair Casters Wheel With 3/8'-16Unc Threaded Stem Heavy Duty Caster Replacement Smooth Rolling For Hardwood F

Hirate Smooth Office Chair Casters-No Matter What Surface You Choose, Its Like Roller Skating At Your Desk. Features: Quiet, Wear-Resisting, Easy To Lock And Install Floor Friendly, Would Not Scratch The Floor Rotation: Swivel 360 Degree. Smooth & Silent Rolling Ball Bearings: Double Ball Bearings, Provide Max Capacity And Flexibility Specification: *Measurement System : English Unit(Imperial) *Mounting Type: Stem *Stem Diameter: 3/8 *Stud Length: 0.79 (20Mm) *Thread Type: English *Wheel Diameter: 3 (75Mm) *Wheel Width:0.87 *Installing Height: 3.8 *Wheel Material: Polyurethane *Bracket: High Quality Steel - Galvanizing *Double Bearing: Steel Ball Bearing *Total Load Capacity: 650 Lbs Package Contains: 5 X 3 Caster Wheels In 3/8 -16X0.79 Threaded Stem(English Unit) 5 X 3/8 Threaded Nylon Lock Nuts Warnting Tips: This Is English Unit Stem 3/8 , Not Metric, Doesnt Fit Metric M10 Stem, Please Kindly Check Yours Before Purchase, Thank You.