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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $528,696 | $652,417 | $973,254 | $1,097,348 | $1,880,293 | $1,514,153 | $1,867,494 |
| Wood screws other than coach screws, of iron/steel | $30,616 | $27,497 | $34,365 | $157,385 | $159,565 | $1,485,975 | $5,260,407 |
| Screw hooks & screw rings, of iron/steel | $36,504 | $64,652 | $152,724 | $169,444 | $93,730 | $148,169 | $162,939 |
| Self-tapping screws of iron/steel | $773,694 | $1,025,053 | $829,084 | $2,073,114 | $2,833,765 | $3,578,196 | $812,358 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $8,084,843 | $7,887,017 | $16,326,791 | $18,702,003 | $12,925,417 | $18,372,821 | $38,280,703 |
| Nuts of iron/steel | $2,153,935 | $2,199,216 | $5,722,511 | $6,262,979 | $2,750,512 | $4,800,449 | $8,832,801 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $1,921,736 | $1,561,216 | $1,059,094 | $5,399,648 | $3,790,175 | $3,934,584 | $5,819,355 |
| Spring washers & oth. lock washers, of iron/steel | $158,440 | $85,553 | $247,645 | $205,730 | $137,010 | $506,683 | $682,400 |
| Washers (excl. of 7318.21) of iron/steel | $1,539,408 | $1,503,584 | $1,998,671 | $1,633,037 | $732,368 | $1,813,734 | $3,068,629 |
| Rivets of iron/steel | $93,808 | $117,699 | $72,830 | $146,932 | $53,491 | $130,672 | $183,192 |
| Cotters & cotter-pins, of iron/steel | $485,290 | $620,002 | $476,810 | $477,566 | $347,306 | $747,116 | $1,798,652 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $8,719,935 | $10,940,540 | $11,550,006 | $6,674,028 | $3,149,819 | $4,306,029 | $2,126,470 |
| Total | $24,526,905 | $26,684,446 | $39,443,785 | $42,999,214 | $28,853,451 | $41,338,581 | $68,895,400 |
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