2-3/8" (60mm) Source II Carpet Wheel Caster with 5/16" Threaded Stem

2-3/8" (60mm) Souce II Twin Wheel Caster with 5/16" Threaded Stem - Part#  8TW6007BK (Best for Carpet) This furniture casters is from our economy line. They feature a nylon body & nylon wheels. The nylon wheels works best on carpet, but will work on all floor surfaces. For floors that need to be protected, such as hardwood or marble, please select a furniture caster marked with "floor protective" in either the title or description. Matching adapters and inserts for this mounting stem can be found here - Adapters & Inserts Specifications: Load Capacity (lbs.): 100 Tread Material: Nylon Wheel Diameter: 60mm Rig Color / Material: Flat Black -Nylon Body Mounting Height: 2-3/4" Swivel Radius: 2-1/4" Fastner: 5/16" - 18 x 1" Long Threaded Stem Weight (Lbs): 0.20