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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Screw hooks & screw rings, of iron/steel | | | | $432 | | | $2,657 |
| Self-tapping screws of iron/steel | | | $426 | | | | |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $105,791 | $483,439 | $626,618 | $65,317 | $67,061 | $161,116 | $35,444 |
| Nuts of iron/steel | $8,123 | $1,309 | $1,777 | $14,076 | $370 | $26,488 | $3,468 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $65 | $9,081 | $9,367 | $2,638 | | | $4,488 |
| Spring washers & oth. lock washers, of iron/steel | | $2,740 | $265 | | | | |
| Washers (excl. of 7318.21) of iron/steel | $1,656 | $3,054 | $5,194 | $1,512 | $28 | $21,372 | $5,443 |
| Rivets of iron/steel | $53 | $3,070 | | | | | |
| Cotters & cotter-pins, of iron/steel | $2,607 | $502 | $6,575 | $3,604 | $756 | $24,114 | $963 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $6,331 | $3,741 | $7,824 | $5,141 | $10,328 | $6,465 | $5,736 |
| Total | $124,626 | $506,936 | $658,046 | $92,720 | $78,543 | $239,555 | $58,199 |
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