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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $39,304 | $17,175 | $25,849 | $43,087 | $20,527 | $33,230 |
| Wood screws other than coach screws, of iron/steel | $43,809 | $31,924 | $68,490 | $123,939 | $62,634 | $44,233 |
| Screw hooks & screw rings, of iron/steel | $10,607 | $16,561 | $15,696 | $33,694 | $20,298 | $29,003 |
| Self-tapping screws of iron/steel | $26,666 | $13,627 | $19,705 | $104,727 | $46,766 | $27,710 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $1,826,240 | $2,304,529 | $1,903,282 | $1,967,234 | $1,379,892 | $1,677,152 |
| Nuts of iron/steel | $95,072 | $121,415 | $91,482 | $100,496 | $82,478 | $120,665 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $795,184 | $1,210,213 | $914,382 | $934,797 | $782,916 | $805,725 |
| Spring washers & oth. lock washers, of iron/steel | $17,448 | $11,385 | $35,858 | $27,921 | $5,873 | $20,850 |
| Washers (excl. of 7318.21) of iron/steel | $173,509 | $215,731 | $208,273 | $142,386 | $209,484 | $168,138 |
| Rivets of iron/steel | $56,363 | $56,924 | $48,120 | $53,094 | $29,286 | $31,325 |
| Cotters & cotter-pins, of iron/steel | $5,884 | $7,040 | $2,880 | $10,444 | $1,369 | $1,738 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $118,214 | $141,472 | $120,428 | $87,478 | $206,522 | $394,822 |
| Total | $3,208,300 | $4,147,996 | $3,454,445 | $3,629,297 | $2,848,045 | $3,354,591 |
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