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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $40,550 | $16,264 | $54 | $6,002 | |
| Wood screws other than coach screws, of iron/steel | $11,139 | $9,560 | $3,883 | $7,386 | $9,955 |
| Screw hooks & screw rings, of iron/steel | $12,716 | $15,464 | $79,943 | $135,198 | $159,360 |
| Self-tapping screws of iron/steel | $11,595 | $12,060 | $3,036 | $8,086 | $4,467 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $521,176 | $1,472,019 | $1,916,284 | $2,645,928 | $3,037,289 |
| Nuts of iron/steel | $66,167 | $151,500 | $110,399 | $276,333 | $272,426 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $105,397 | $70,757 | $263,707 | $67,240 | $98,326 |
| Spring washers & oth. lock washers, of iron/steel | $4,673 | $8,246 | $132,394 | $14,610 | $17,114 |
| Washers (excl. of 7318.21) of iron/steel | $31,755 | $154,872 | $75,767 | $248,815 | $326,808 |
| Rivets of iron/steel | $3,364 | $4,512 | $1,968 | $4,833 | $4,874 |
| Cotters & cotter-pins, of iron/steel | $75,484 | $185,279 | $114,657 | $465,315 | $752,875 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $257,617 | $492,532 | $325,868 | $275,058 | $163,540 |
| Total | $1,141,633 | $2,593,065 | $3,027,960 | $4,154,804 | $4,847,034 |
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