4" 100mm twin wheel caster, gray riveted soft wheel adds strength, 2 with and 2 without brake, 1/2" - 13 x 1" stem$$Tools & Hardware Other

100mm 4" twin wheel caster, soft gray riveted wheel for use on hardwood floor or concrete. Riveted wheels prevent wheels from popping off when loaded. 4-7/16" mounting height. 2255 lbs rating per caster. 1/2" - 13 x 1" threaded stem 2 with and 2 without brake. Made in Taiwan.