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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $2,752,165 | $2,233,321 | $2,971,544 | $2,348,888 | $1,268,123 | $1,640,946 | $2,236,572 |
| Wood screws other than coach screws, of iron/steel | $30,696,706 | $27,816,479 | $30,795,174 | $38,465,170 | $24,898,168 | $32,319,205 | $39,878,459 |
| Screw hooks & screw rings, of iron/steel | $1,464,596 | $1,406,449 | $2,303,603 | $3,050,821 | $2,708,960 | $3,842,599 | $5,365,695 |
| Self-tapping screws of iron/steel | $22,498,672 | $19,169,483 | $17,104,632 | $19,005,133 | $14,585,414 | $25,689,505 | $37,268,847 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $240,372,588 | $302,574,324 | $392,241,786 | $427,583,701 | $282,042,996 | $340,374,221 | $406,845,269 |
| Nuts of iron/steel | $123,408,641 | $147,343,772 | $194,837,613 | $203,661,649 | $127,732,069 | $157,389,702 | $198,552,953 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $17,783,784 | $22,282,136 | $27,328,956 | $29,426,988 | $26,909,132 | $28,675,703 | $36,704,878 |
| Spring washers & oth. lock washers, of iron/steel | $9,559,446 | $12,371,247 | $13,350,051 | $14,699,060 | $8,578,633 | $13,627,498 | $17,106,030 |
| Washers (excl. of 7318.21) of iron/steel | $38,359,138 | $41,593,642 | $54,024,089 | $57,275,572 | $39,857,521 | $50,263,203 | $59,542,385 |
| Rivets of iron/steel | $6,807,688 | $8,706,188 | $12,210,390 | $10,914,637 | $7,909,394 | $9,262,878 | $10,725,375 |
| Cotters & cotter-pins, of iron/steel | $2,499,021 | $2,334,156 | $4,650,222 | $6,211,907 | $4,537,316 | $7,561,384 | $9,648,275 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $36,137,238 | $48,705,709 | $49,886,773 | $46,305,073 | $31,316,499 | $37,981,516 | $43,883,104 |
| Total | $532,339,683 | $636,536,906 | $801,704,833 | $858,948,599 | $572,344,225 | $708,628,360 | $867,757,842 |
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