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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $224,318 | $588,193 | $780,558 | $634,625 | $698,806 |
| Wood screws other than coach screws, of iron/steel | $610,390 | $421,348 | $602,549 | $489,406 | $188,576 |
| Screw hooks & screw rings, of iron/steel | $17,650 | $107,747 | $399,884 | $152,023 | $26,128 |
| Self-tapping screws of iron/steel | $118,190 | $1,994 | $1,761,303 | $1,897,961 | $590,006 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $10,479,790 | $28,509,681 | $42,766,281 | $163,948,422 | $176,897,680 |
| Nuts of iron/steel | $1,979,717 | $3,773,749 | $14,803,016 | $14,645,809 | $19,188,688 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $849,154 | $845,174 | $930,893 | $2,548,720 | $768,261 |
| Spring washers & oth. lock washers, of iron/steel | $82,369 | $596,586 | $390,591 | $2,919,412 | $1,191,349 |
| Washers (excl. of 7318.21) of iron/steel | $667,457 | $1,614,875 | $10,501,166 | $13,275,181 | $44,064,103 |
| Rivets of iron/steel | $299,665 | $658,773 | $355,958 | $1,630,988 | $929,551 |
| Cotters & cotter-pins, of iron/steel | $950,852 | $887,057 | $3,132,537 | $36,946,813 | $6,876,989 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $4,963,016 | $566,422 | $1,614,282 | $4,986,917 | $9,042,419 |
| Total | $21,242,568 | $38,571,599 | $78,039,018 | $244,076,277 | $260,462,556 |
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