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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $418 | $4,728 | $13,095 | $506 | $255,061 | | $12 |
| Wood screws other than coach screws, of iron/steel | $49,431 | $198,857 | $503,567 | $718,571 | $407,419 | $634,112 | $383,101 |
| Screw hooks & screw rings, of iron/steel | | $26 | $8,295 | $1,901 | $1,989 | $930 | $7,075 |
| Self-tapping screws of iron/steel | $107,534 | $186,135 | $233,345 | $742,297 | $642,774 | $1,506,254 | $1,262,936 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $530,983 | $1,648,811 | $2,201,122 | $3,499,837 | $2,900,018 | $3,808,562 | $2,072,894 |
| Nuts of iron/steel | $36,231 | $41,961 | $69,324 | $209,827 | $462,292 | $237,300 | $349,640 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $70,741 | $92,136 | $51,701 | $195,192 | $197,066 | $292,782 | $286,144 |
| Spring washers & oth. lock washers, of iron/steel | $5,348 | $4,051 | $3,432 | $16,181 | $215,402 | $14,255 | $74,470 |
| Washers (excl. of 7318.21) of iron/steel | $40,057 | $43,327 | $383,986 | $604,909 | $604,138 | $518,533 | $345,298 |
| Rivets of iron/steel | $3,714 | $11,681 | $87,557 | $82,075 | $42,550 | $19,569 | $69,339 |
| Cotters & cotter-pins, of iron/steel | $3,880 | $5,831 | $6,624 | $146,914 | $4,129 | $21,987 | $35,958 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $28,635 | $44,629 | $77,543 | $614,389 | $169,253 | $185,607 | $162,627 |
| Total | $876,972 | $2,282,173 | $3,639,591 | $6,832,599 | $5,902,091 | $7,239,891 | $5,049,494 |
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