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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Coach screws of iron/steel | $56,945 | $88,079 | $86,834 | $80,491 |
| Wood screws other than coach screws, of iron/steel | $18,502 | $16,203 | $20,425 | $29,461 |
| Screw hooks & screw rings, of iron/steel | $8,312 | $11,325 | $15,643 | $17,578 |
| Self-tapping screws of iron/steel | $31,564 | $70,436 | $31,456 | $35,745 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $313,397 | $248,517 | $382,017 | $710,154 |
| Nuts of iron/steel | $228,987 | $481,384 | $489,520 | $555,718 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $555,424 | $578,577 | $608,528 | $827,065 |
| Spring washers & oth. lock washers, of iron/steel | $159,266 | $159,423 | $121,403 | $298,680 |
| Washers (excl. of 7318.21) of iron/steel | $268,576 | $120,228 | $56,420 | $117,078 |
| Rivets of iron/steel | $12,282 | $10,072 | $16,571 | $13,063 |
| Cotters & cotter-pins, of iron/steel | $7,609 | $11,613 | $5,100 | $10,023 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $1,094,527 | $1,757,713 | $2,116,943 | $2,302,151 |
| Total | $2,755,391 | $3,553,570 | $3,950,860 | $4,997,207 |
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