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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $1,066,543 | $1,686,982 | $1,855,639 | $1,501,743 | $970,802 | $986,187 | $1,203,673 |
| Wood screws other than coach screws, of iron/steel | $9,792,848 | $11,477,542 | $19,327,275 | $20,069,993 | $11,741,165 | $15,731,599 | $26,244,766 |
| Screw hooks & screw rings, of iron/steel | $926,959 | $1,058,214 | $1,035,660 | $994,178 | $786,807 | $1,509,893 | $1,588,587 |
| Self-tapping screws of iron/steel | $21,155,787 | $37,251,988 | $50,986,027 | $52,057,311 | $45,985,972 | $27,741,475 | $17,882,992 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $68,766,586 | $105,122,448 | $127,268,270 | $137,575,976 | $83,292,302 | $96,227,341 | $144,439,426 |
| Nuts of iron/steel | $14,668,055 | $18,318,311 | $23,804,643 | $23,437,623 | $16,219,031 | $18,585,742 | $21,687,114 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $15,722,177 | $18,305,101 | $18,790,336 | $19,918,131 | $12,183,545 | $12,592,443 | $16,901,532 |
| Spring washers & oth. lock washers, of iron/steel | $2,430,915 | $2,716,204 | $3,436,075 | $3,840,418 | $2,018,287 | $3,169,702 | $4,000,339 |
| Washers (excl. of 7318.21) of iron/steel | $8,001,337 | $7,973,220 | $9,703,885 | $11,860,124 | $10,491,777 | $11,112,617 | $13,427,195 |
| Rivets of iron/steel | $4,210,874 | $5,266,681 | $9,598,773 | $9,830,302 | $3,193,419 | $3,535,873 | $4,026,213 |
| Cotters & cotter-pins, of iron/steel | $1,217,120 | $1,121,815 | $1,392,088 | $1,394,743 | $763,100 | $970,667 | $1,241,832 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $15,836,264 | $21,850,298 | $25,760,247 | $35,480,359 | $20,884,053 | $17,858,907 | $20,555,362 |
| Total | $163,795,465 | $232,148,804 | $292,958,918 | $317,960,901 | $208,530,260 | $210,022,446 | $273,199,031 |
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