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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $357,646 | $935,014 | $1,324,153 | $2,072,251 | $2,176,482 | $960,494 |
| Wood screws other than coach screws, of iron/steel | $36,936 | $311,701 | $550,109 | $919,540 | $849,571 | $636,722 |
| Screw hooks & screw rings, of iron/steel | $45,170 | $3,443 | $60,252 | $62,916 | $55,061 | $54,762 |
| Self-tapping screws of iron/steel | $27,880 | $82,629 | $127,061 | $1,479,033 | $781,876 | $219,400 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $4,410,343 | $5,824,486 | $12,691,297 | $20,030,892 | $7,177,007 | $10,169,392 |
| Nuts of iron/steel | $702,338 | $686,653 | $1,198,390 | $1,568,544 | $2,302,529 | $2,759,265 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $3,594,132 | $5,576,491 | $6,716,275 | $9,054,959 | $6,693,197 | $7,300,296 |
| Spring washers & oth. lock washers, of iron/steel | $166,286 | $1,152,086 | $168,273 | $719,017 | $410,767 | $448,427 |
| Washers (excl. of 7318.21) of iron/steel | $183,022 | $169,560 | $260,427 | $894,885 | $929,761 | $825,349 |
| Rivets of iron/steel | $44,770 | $19,308 | $61,454 | $77,199 | $109,886 | $75,873 |
| Cotters & cotter-pins, of iron/steel | $147,412 | $78,551 | $59,290 | $226,104 | $190,603 | $216,661 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $206,351 | $566,026 | $1,322,905 | $425,340 | $395,090 | $657,923 |
| Total | $9,922,286 | $15,405,948 | $24,539,886 | $37,530,680 | $22,071,830 | $24,324,564 |
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