This is the Transport Wheel Shoulder Screw, Set of Two (2), part number W10348411, for a Whirlpool dishwasher.  This item came from a Whirlpool Model WDT920SADM2, KitchenAid Dishwasher Model KUDS301XBL4 or JennAir Dishwasher Model JDB8500AWY1, but it will fit other models and brands where the part number matches. Some wear and residue from normal use, but fully functional.  Price includes shipping, USPS First Class