| Harmonised Commodity Description and Coding System (HS) - level 2 - Chapter | 
                    73 | 
                    Articles of iron or steel | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731811 | 
                    Coach screws of iron or steel | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731812 | 
                    Wood screws of iron or steel (excl. coach screws) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731813 | 
                    Screw hooks and screw rings, of iron or steel | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731814 | 
                    Self-tapping screws, of iron or steel (excl. wood screws) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731815 | 
                    Threaded screws and bolts, of iron or steel, whether or not with their nuts and washers (excl. coach screws and other wood screws, screw hooks and screw rings, self-tapping screws, lag screws, stoppers, plugs and the like, threaded) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731816 | 
                    Nuts of iron or steel | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731819 | 
                    Threaded articles, of iron or steel, n.e.s. | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731821 | 
                    Spring washers and other lock washers, of iron or steel | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731822 | 
                    Washers of iron or steel (excl. spring washers and other lock washers) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731823 | 
                    Rivets of iron or steel (excl. tubular and bifurcated rivets for particular uses) | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731824 | 
                    Cotters and cotter pins, of iron or steel | 
                  
                
                  
                    | Harmonised Commodity Description and Coding System (HS) - level 4 - Article | 
                    731829 | 
                    Non-threaded articles, of iron or steel |