Stainless Steel medium heavy duty caster series is made to withstand harsh environments and applications that would normally rust and corrode standard zinc plated casters; all metal parts are made entirely out of high quality 304 STAINLESS STEEL. The 31 /32 caster series has the same durable design and features as our popular 27 / 28 series. Double ball raceways and a 5/8” nut & bolt kingpin are standard features constructed with Stainless Steel. A huge selection of washdown friendly wheels, bearings, brakes and options are available. Popular applications include; cleanrooms, laboratories, medical and hospital facilities, animal cages, pharmaceutical plants, autoclaves, food processing, bakeries, dairy, food service, catering, hospitality, chemical factories, marine environments, fisheries, cruise ships, etc.