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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Coach screws of iron/steel | $264 | $2,533 | $28,469 | $3,848 | $7,206 | $12,685 |
| Wood screws other than coach screws, of iron/steel | $115,033 | $138,846 | $204,924 | $253,686 | $246,322 | $187,122 |
| Screw hooks & screw rings, of iron/steel | $4,692 | $13,637 | $9,461 | $41,204 | $14,091 | $16,400 |
| Self-tapping screws of iron/steel | $217,301 | $555,681 | $706,409 | $797,169 | $655,027 | $676,269 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $1,678,157 | $2,039,553 | $2,516,025 | $2,741,991 | $2,416,313 | $2,669,744 |
| Nuts of iron/steel | $253,865 | $185,633 | $269,656 | $630,963 | $350,488 | $414,858 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $213,903 | $292,860 | $348,519 | $489,247 | $474,698 | $463,373 |
| Spring washers & oth. lock washers, of iron/steel | $77,056 | $73,222 | $112,135 | $164,433 | $75,571 | $113,216 |
| Washers (excl. of 7318.21) of iron/steel | $123,894 | $144,857 | $250,097 | $259,403 | $210,677 | $284,383 |
| Rivets of iron/steel | $86,076 | $135,681 | $104,378 | $97,690 | $193,614 | $70,194 |
| Cotters & cotter-pins, of iron/steel | $18,582 | $27,720 | $36,849 | $65,132 | $59,566 | $74,363 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $226,127 | $353,601 | $262,903 | $632,048 | $448,601 | $392,541 |
| Total | $3,014,950 | $3,963,824 | $4,849,825 | $6,176,814 | $5,152,174 | $5,375,148 |
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