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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | | $6,272 | | | $1,184 | $40 | |
| Wood screws other than coach screws, of iron/steel | $20,291 | $34,503 | $19,469 | $35,674 | $15,572 | $24,187 | $11,378 |
| Screw hooks & screw rings, of iron/steel | $1,793 | $8,578 | $1,238 | $1,437 | $2,756 | $4,209 | $884 |
| Self-tapping screws of iron/steel | $24,814 | $62,081 | $62,870 | $76,879 | $146,988 | $68,144 | $37,925 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $730,235 | $698,147 | $2,097,641 | $10,281,473 | $4,918,241 | $12,167,421 | $17,703,254 |
| Nuts of iron/steel | $44,758 | $45,335 | $115,951 | $138,099 | $90,091 | $38,355 | $48,972 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $1,103,693 | $1,932,189 | $3,820,332 | $31,460 | $41,904 | $18,895 | $20,348 |
| Spring washers & oth. lock washers, of iron/steel | $11,816 | $2,531,952 | $8,464,204 | $10,189,544 | $7,799,990 | $10,813,452 | $10,294,058 |
| Washers (excl. of 7318.21) of iron/steel | $355,780 | $425,904 | $407,126 | $559,065 | $178,850 | $1,027,884 | $4,373,822 |
| Rivets of iron/steel | $29,544 | $23,958 | $23,566 | $12,877 | $327,161 | $33,792 | $35,811 |
| Cotters & cotter-pins, of iron/steel | $40,801 | $22,248 | $140 | $883 | $3,764 | $6,015 | $1,201 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $664,018 | $640,197 | $152,695 | $161,915 | $100,928 | $155,267 | $125,130 |
| Total | $3,027,543 | $6,431,364 | $15,165,232 | $21,489,306 | $13,627,429 | $24,357,661 | $32,652,783 |
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