Stem Caster, Swivel Caster with Brake, 100 lb Load Rating, 0 to 299 lb, 2 3/8 in Wheel Dia., Nylon Wheel/Tread Material, 2 3/4 in Mounting Height, Plain, 5/16 In.-18 x 1 in Caster Stem Size, Threaded, Nylon Caster Frame Material, No Finish Frame...