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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $215,154 | $579,173 | $798,984 | $2,129,323 | $1,875,260 | $2,305,134 |
| Wood screws other than coach screws, of iron/steel | $5,847,725 | $7,770,473 | $10,355,219 | $11,815,164 | $10,340,438 | $12,288,300 |
| Screw hooks & screw rings, of iron/steel | $2,177,662 | $2,594,345 | $2,392,834 | $2,338,571 | $2,136,177 | $2,342,271 |
| Self-tapping screws of iron/steel | $15,422,722 | $18,314,948 | $26,244,296 | $32,874,096 | $24,487,207 | $25,264,957 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $166,657,674 | $205,926,948 | $273,742,684 | $300,361,279 | $185,900,457 | $258,103,369 |
| Nuts of iron/steel | $65,971,590 | $79,972,423 | $94,464,090 | $118,449,305 | $71,702,170 | $96,383,243 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $18,036,911 | $14,102,434 | $27,440,027 | $27,613,415 | $23,472,837 | $23,794,074 |
| Spring washers & oth. lock washers, of iron/steel | $2,441,319 | $3,335,587 | $3,670,934 | $3,969,824 | $2,198,965 | $2,399,302 |
| Washers (excl. of 7318.21) of iron/steel | $10,312,492 | $13,277,018 | $15,832,791 | $20,018,584 | $18,068,908 | $15,738,043 |
| Rivets of iron/steel | $1,114,326 | $1,600,579 | $967,842 | $1,087,502 | $873,447 | $1,774,608 |
| Cotters & cotter-pins, of iron/steel | $5,814,146 | $6,530,464 | $7,518,963 | $8,683,807 | $8,498,665 | $8,167,442 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $17,391,447 | $16,633,963 | $30,829,532 | $38,976,190 | $35,182,047 | $27,885,753 |
| Total | $311,403,168 | $370,638,355 | $494,258,196 | $568,317,060 | $384,736,578 | $476,446,496 |
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