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| Commodity | 2005 | 2007 | 2008 |
| Coach screws of iron/steel | $455,296 | $2,351,690 | $2,723,081 |
| Wood screws other than coach screws, of iron/steel | $2,847,099 | $4,024,142 | $4,453,402 |
| Screw hooks & screw rings, of iron/steel | $744,874 | $2,187,366 | $3,214,347 |
| Self-tapping screws of iron/steel | $5,652,066 | $8,136,535 | $7,268,574 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $38,182,134 | $80,511,937 | $110,684,969 |
| Nuts of iron/steel | $8,610,901 | $17,282,123 | $23,218,128 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $11,794,583 | $14,526,109 | $27,142,825 |
| Spring washers & oth. lock washers, of iron/steel | $779,359 | $1,982,949 | $2,461,680 |
| Washers (excl. of 7318.21) of iron/steel | $4,906,365 | $6,543,869 | $6,956,630 |
| Rivets of iron/steel | $1,107,836 | $1,401,889 | $2,064,708 |
| Cotters & cotter-pins, of iron/steel | $376,659 | $4,133,911 | $981,262 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $1,831,473 | $3,870,863 | $3,859,698 |
| Total | $77,288,645 | $146,953,383 | $195,029,304 |
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