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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $185,195 | $297,960 | $344,339 | $358,689 | $314,042 | $61,222 | $77,006 |
| Wood screws other than coach screws, of iron/steel | $285,423 | $434,287 | $653,449 | $429,387 | $219,531 | $432,593 | $1,424,328 |
| Screw hooks & screw rings, of iron/steel | $73,471 | $13,863 | $87,486 | $86,810 | $40,194 | $90,967 | $83,928 |
| Self-tapping screws of iron/steel | $1,155,756 | $899,849 | $993,812 | $1,099,432 | $725,540 | $1,738,892 | $1,880,727 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $8,123,994 | $10,832,847 | $12,758,099 | $14,475,860 | $9,037,632 | $11,727,139 | $11,615,818 |
| Nuts of iron/steel | $1,730,922 | $1,858,598 | $2,460,839 | $2,640,897 | $1,475,283 | $2,585,767 | $2,776,210 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $302,906 | $548,912 | $763,246 | $1,132,767 | $1,173,722 | $1,853,866 | $906,508 |
| Spring washers & oth. lock washers, of iron/steel | $71,676 | $79,493 | $73,831 | $129,723 | $123,362 | $157,937 | $114,853 |
| Washers (excl. of 7318.21) of iron/steel | $1,598,912 | $1,743,599 | $1,731,263 | $2,271,021 | $1,624,944 | $2,231,019 | $2,098,756 |
| Rivets of iron/steel | $273,704 | $448,387 | $564,378 | $524,668 | $406,564 | $527,294 | $574,726 |
| Cotters & cotter-pins, of iron/steel | $463,183 | $664,277 | $1,216,415 | $1,489,583 | $771,569 | $1,490,441 | $6,530,763 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $3,103,297 | $4,274,885 | $6,593,471 | $3,568,481 | $2,845,680 | $6,231,867 | $4,436,871 |
| Total | $17,368,439 | $22,096,957 | $28,240,628 | $28,207,318 | $18,758,063 | $29,129,004 | $32,520,494 |
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