Harmonized System

Section XV

BASE METALS AND ARTICLES OF BASE METAL

Chapter 73

Articles of iron or steel

Heading 7318

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel.

7318.21

-- Spring washers and other lock washers

Section XV

BASE METALS AND ARTICLES OF BASE METAL

Chapter 73

Articles of iron or steel

Heading 7318

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel.

7318.21

-- Spring washers and other lock washers