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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $3,888 | $145 | $1,159 | $15,732 | $17,561 | $14,063 | $2,264,630 |
| Wood screws other than coach screws, of iron/steel | $93,778 | $165,970 | $341,281 | $457,727 | $1,381,571 | $516,629 | $101,799 |
| Screw hooks & screw rings, of iron/steel | $159,629 | $312,688 | $272,779 | $183,100 | $11,243 | $66,894 | $159,009 |
| Self-tapping screws of iron/steel | $197,391 | $241,274 | $165,605 | $242,420 | $119,939 | $106,479 | $368,685 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $4,778,228 | $3,190,011 | $3,359,463 | $3,928,081 | $2,965,899 | $4,545,094 | $7,919,024 |
| Nuts of iron/steel | $108,316 | $173,239 | $270,572 | $298,082 | $439,721 | $438,345 | $320,032 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $331,556 | $249,329 | $365,594 | $376,863 | $264,982 | $549,487 | $2,688,989 |
| Spring washers & oth. lock washers, of iron/steel | $39,767 | $46,107 | $166,545 | $98,355 | $35,984 | $80,596 | $76,088 |
| Washers (excl. of 7318.21) of iron/steel | $72,490 | $190,033 | $120,357 | $182,993 | $119,492 | $163,807 | $448,526 |
| Rivets of iron/steel | $171,490 | $13,301 | $26,409 | $101,870 | $67,007 | $63,943 | $101,019 |
| Cotters & cotter-pins, of iron/steel | $55,145 | $111,560 | $459,951 | $1,318,750 | $198,814 | $276,183 | $5,090,090 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $408,251 | $639,504 | $629,577 | $1,244,357 | $1,562,990 | $836,725 | $2,605,692 |
| Total | $6,419,929 | $5,333,161 | $6,179,292 | $8,448,330 | $7,185,203 | $7,658,245 | $22,143,583 |
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