HS Code	Description	Data Type
73	Articles of iron or steel.
7318	SCREWS, BOLTS, NUTS, COACH-SCREWS, SCREW HOOKS, RIVETS, COTTERS, COTTER-PINS, WASHERS (INCLUDING SPRING WASHERS) AND SIMILAR ARTICLES, OF IRON OR STEEL	Import Data/Export Data
731821	Non-threaded articles	Import Data/Export Data

Spring Washers And Other Lock Washers