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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $8,654 | $18,193 | $36,573 | $21,345 | $89,753 | $39,187 | $80,396 |
| Wood screws other than coach screws, of iron/steel | $192,624 | $145,635 | $177,434 | $120,037 | $107,232 | $135,086 | $175,325 |
| Screw hooks & screw rings, of iron/steel | $51,951 | $127,266 | $42,472 | $48,379 | $144,389 | $97,751 | $85,391 |
| Self-tapping screws of iron/steel | $5,280 | $14,374 | $4,239 | $24,338 | $40,084 | $12,372 | $14,824 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $1,695,599 | $1,895,957 | $2,866,183 | $3,849,545 | $3,317,011 | $4,970,305 | $3,456,682 |
| Nuts of iron/steel | $354,977 | $537,245 | $762,998 | $744,382 | $863,431 | $870,002 | $571,374 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $149,590 | $442,325 | $268,043 | $385,966 | $513,677 | $802,351 | $194,337 |
| Spring washers & oth. lock washers, of iron/steel | $23,441 | $8,155 | $11,332 | $19,795 | $23,692 | $24,629 | $10,693 |
| Washers (excl. of 7318.21) of iron/steel | $185,692 | $288,210 | $1,873,300 | $419,863 | $348,773 | $438,587 | $414,683 |
| Rivets of iron/steel | $75,387 | $67,870 | $70,640 | $158,366 | $51,947 | $41,450 | $74,484 |
| Cotters & cotter-pins, of iron/steel | $146,522 | $167,706 | $375,237 | $455,903 | $466,229 | $370,826 | $236,743 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $139,658 | $194,935 | $258,562 | $244,112 | $207,181 | $267,408 | $263,537 |
| Total | $3,029,375 | $3,907,871 | $6,747,013 | $6,492,031 | $6,173,399 | $8,069,954 | $5,578,469 |
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