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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $51,353 | $284,853 | $353,249 | $989,563 | $860,287 | $1,247,260 |
| Wood screws other than coach screws, of iron/steel | $9,654,769 | $24,513,133 | $50,450,725 | $52,543,846 | $26,118,612 | $29,755,152 |
| Screw hooks & screw rings, of iron/steel | $295,005 | $397,786 | $470,953 | $2,433,098 | $895,164 | $541,504 |
| Self-tapping screws of iron/steel | $19,035,831 | $25,165,762 | $26,671,685 | $32,715,741 | $25,428,526 | $28,363,975 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $55,910,106 | $68,071,451 | $87,482,359 | $106,536,488 | $71,606,952 | $89,060,897 |
| Nuts of iron/steel | $10,573,710 | $13,129,450 | $15,334,781 | $20,145,960 | $14,802,172 | $19,452,654 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $37,350,573 | $38,323,264 | $43,879,235 | $49,797,366 | $38,785,268 | $35,389,293 |
| Spring washers & oth. lock washers, of iron/steel | $6,486,614 | $5,808,316 | $6,271,699 | $6,917,115 | $4,999,988 | $7,057,551 |
| Washers (excl. of 7318.21) of iron/steel | $5,782,000 | $7,753,768 | $10,141,108 | $12,506,785 | $9,643,342 | $11,181,432 |
| Rivets of iron/steel | $10,277,368 | $13,382,275 | $14,128,894 | $15,237,046 | $10,318,652 | $12,121,911 |
| Cotters & cotter-pins, of iron/steel | $1,118,082 | $1,506,293 | $1,830,917 | $1,951,547 | $1,733,594 | $1,502,515 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $15,769,711 | $20,941,934 | $26,358,610 | $32,526,234 | $23,269,937 | $23,557,818 |
| Total | $172,305,122 | $219,278,285 | $283,374,215 | $334,300,789 | $228,462,494 | $259,231,962 |
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