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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $15,712 | $16,779 | $13,712 | $26,452 | $7,125 | $30,757 | $10,209 |
| Wood screws other than coach screws, of iron/steel | $32,004 | $146,843 | $16,041 | $55,549 | $92,374 | $319,201 | $139,771 |
| Screw hooks & screw rings, of iron/steel | $19,062 | $10,421 | $5,854 | $93,695 | $7,722 | $54,285 | $73,979 |
| Self-tapping screws of iron/steel | $337,070 | $437,728 | $314,495 | $632,153 | $515,910 | $664,609 | $708,071 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $2,679,696 | $4,856,059 | $6,652,981 | $9,369,242 | $9,660,271 | $10,235,997 | $12,957,563 |
| Nuts of iron/steel | $438,115 | $504,582 | $796,672 | $1,139,042 | $1,159,310 | $1,629,698 | $2,220,536 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $202,057 | $653,219 | $476,425 | $1,436,587 | $695,270 | $1,144,880 | $1,141,293 |
| Spring washers & oth. lock washers, of iron/steel | $32,017 | $33,692 | $63,626 | $67,698 | $45,950 | $58,919 | $117,037 |
| Washers (excl. of 7318.21) of iron/steel | $137,320 | $183,018 | $271,267 | $311,567 | $341,405 | $276,616 | $567,861 |
| Rivets of iron/steel | $82,813 | $144,642 | $211,679 | $259,150 | $207,418 | $358,741 | $594,532 |
| Cotters & cotter-pins, of iron/steel | $75,005 | $91,140 | $111,594 | $199,274 | $280,119 | $409,370 | $815,797 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $205,414 | $305,538 | $888,318 | $1,482,260 | $1,054,073 | $1,339,775 | $1,423,193 |
| Total | $4,256,285 | $7,383,661 | $9,822,664 | $15,072,669 | $14,066,947 | $16,522,848 | $20,769,842 |
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