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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $1,143,367 | $4,040,635 | $4,754,984 | $3,220,018 | $3,975,036 | $14,624,165 | $11,133,291 |
| Wood screws other than coach screws, of iron/steel | $31,364,765 | $33,627,771 | $43,630,561 | $48,324,221 | $33,462,026 | $51,241,959 | $57,610,677 |
| Screw hooks & screw rings, of iron/steel | $4,377,739 | $4,623,745 | $5,425,843 | $6,934,128 | $4,813,193 | $8,243,508 | $7,992,227 |
| Self-tapping screws of iron/steel | $53,578,167 | $60,005,857 | $83,196,311 | $115,203,359 | $49,387,698 | $62,410,658 | $99,255,946 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $165,083,164 | $205,013,051 | $308,220,781 | $355,632,611 | $197,114,345 | $260,047,887 | $355,022,517 |
| Nuts of iron/steel | $65,281,630 | $72,980,819 | $121,257,812 | $141,486,323 | $66,742,951 | $98,833,027 | $131,644,529 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $60,224,494 | $67,084,416 | $101,367,846 | $121,446,328 | $77,493,859 | $79,848,703 | $87,520,936 |
| Spring washers & oth. lock washers, of iron/steel | $10,213,719 | $12,352,944 | $17,638,885 | $19,203,529 | $8,921,714 | $11,573,174 | $15,690,221 |
| Washers (excl. of 7318.21) of iron/steel | $19,840,467 | $21,290,047 | $35,484,585 | $37,008,899 | $20,408,075 | $34,351,155 | $45,113,788 |
| Rivets of iron/steel | $4,104,166 | $3,714,872 | $2,355,046 | $2,500,238 | $2,680,863 | $3,054,664 | $3,707,557 |
| Cotters & cotter-pins, of iron/steel | $5,741,422 | $5,130,572 | $9,579,188 | $10,472,695 | $6,249,227 | $7,657,593 | $11,668,296 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $46,943,701 | $44,018,554 | $51,345,994 | $66,497,004 | $37,877,774 | $69,611,628 | $88,987,266 |
| Total | $467,896,801 | $533,883,283 | $784,257,836 | $927,929,353 | $509,126,761 | $701,498,121 | $915,347,251 |
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