Extended-Stem Threaded Stem Caster for Ladders, Swivel Caster, 100 lb Load Rating, 0 to 299 lb, 3 in Wheel Dia., 7/8 in Wheel Width, Rubber Wheel/Tread Material, 3 23/32 in Mounting Height, Plain, 5/16 In.-18 x 4-49/64 in Caster Stem Size, Threaded,...