Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 18 Screws, bolts, nuts, coach-screws, screw hooks...(incl.spring washer)..of iron or steel 73 18 14 Self-tapping screws 73 18 14 00 Self-tapping screws Commodity Code Description 73 18 14 00 000 Self-tapping screws
