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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $1,665 | $120 | $4,696 | $87,184 | $346,854 | $402,665 | $64,833 |
| Wood screws other than coach screws, of iron/steel | $237,384 | $92,675 | $149,799 | $106,894 | $115,310 | $172,690 | $186,228 |
| Screw hooks & screw rings, of iron/steel | $64,723 | $9,496 | $14,423 | $35,593 | $16,764 | $71,534 | $67,634 |
| Self-tapping screws of iron/steel | $390,477 | $318,438 | $408,177 | $598,308 | $290,527 | $341,833 | $409,727 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $4,572,537 | $4,526,847 | $5,696,345 | $8,889,710 | $8,271,774 | $12,150,052 | $18,699,860 |
| Nuts of iron/steel | $875,270 | $752,164 | $1,071,855 | $1,153,999 | $712,239 | $826,121 | $1,059,245 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $766,477 | $459,520 | $361,474 | $400,119 | $464,826 | $349,187 | $416,622 |
| Spring washers & oth. lock washers, of iron/steel | $82,979 | $48,095 | $253,498 | $434,154 | $87,325 | $444,890 | $276,527 |
| Washers (excl. of 7318.21) of iron/steel | $402,746 | $470,541 | $768,897 | $780,159 | $539,483 | $670,140 | $939,154 |
| Rivets of iron/steel | $73,924 | $110,751 | $195,066 | $134,997 | $94,036 | $103,988 | $84,989 |
| Cotters & cotter-pins, of iron/steel | $281,799 | $190,127 | $166,172 | $201,611 | $131,627 | $188,884 | $132,694 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $1,684,134 | $2,553,545 | $2,461,827 | $3,757,401 | $1,828,651 | $1,689,753 | $2,440,850 |
| Total | $9,434,115 | $9,532,319 | $11,552,229 | $16,580,129 | $12,899,416 | $17,411,737 | $24,778,363 |
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