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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $74,440 | $29,666 | $5,106 | $116,661 | $169,557 | $253,844 | $247,734 |
| Wood screws other than coach screws, of iron/steel | $6,226,460 | $7,300,255 | $16,168,744 | $10,995,141 | $7,114,482 | $10,514,702 | $11,108,061 |
| Screw hooks & screw rings, of iron/steel | $1,025,194 | $892,168 | $885,626 | $1,427,889 | $1,163,565 | $2,230,302 | $2,283,208 |
| Self-tapping screws of iron/steel | $10,071,227 | $10,971,931 | $16,840,682 | $29,438,471 | $23,027,375 | $28,577,841 | $35,996,864 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $85,507,196 | $98,411,301 | $127,422,853 | $147,135,556 | $81,823,224 | $120,018,254 | $174,070,351 |
| Nuts of iron/steel | $6,945,689 | $7,486,512 | $8,032,101 | $9,917,157 | $5,853,646 | $8,030,383 | $11,734,976 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $7,004,420 | $13,305,822 | $17,632,841 | $26,986,926 | $17,255,288 | $22,085,041 | $29,417,954 |
| Spring washers & oth. lock washers, of iron/steel | $1,368,278 | $3,034,868 | $5,314,317 | $5,586,421 | $5,786,275 | $6,171,962 | $4,579,132 |
| Washers (excl. of 7318.21) of iron/steel | $7,250,533 | $6,354,156 | $3,143,820 | $8,069,184 | $6,314,118 | $6,077,024 | $8,174,748 |
| Rivets of iron/steel | $1,286,306 | $1,692,701 | $1,764,561 | $1,820,297 | $1,286,350 | $1,357,846 | $1,756,969 |
| Cotters & cotter-pins, of iron/steel | $610,882 | $898,731 | $1,341,009 | $1,298,068 | $668,545 | $766,616 | $864,872 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $41,725,813 | $39,036,681 | $52,724,889 | $66,339,756 | $49,326,712 | $69,080,169 | $77,317,676 |
| Total | $169,096,438 | $189,414,792 | $251,276,549 | $309,131,527 | $199,789,137 | $275,163,984 | $357,552,545 |
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