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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $6,423 | $3,997 | $5,777 | $10,392 | $9,870 | $3,631 |
| Wood screws other than coach screws, of iron/steel | $31,660 | $15,905 | $37,138 | $48,873 | $77,478 | $41,775 |
| Screw hooks & screw rings, of iron/steel | $6,073 | $11,098 | $38,925 | $25,621 | $55,228 | $33,859 |
| Self-tapping screws of iron/steel | $28,649 | $18,546 | $32,333 | $22,533 | $43,387 | $25,432 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $771,490 | $1,001,132 | $1,453,436 | $1,954,392 | $2,398,436 | $2,293,101 |
| Nuts of iron/steel | $57,597 | $137,896 | $36,357 | $180,199 | $89,540 | $141,761 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $601,287 | $221,064 | $151,495 | $193,636 | $100,890 | $130,598 |
| Spring washers & oth. lock washers, of iron/steel | $12,265 | $11,369 | $5,989 | $22,601 | $19,726 | $10,982 |
| Washers (excl. of 7318.21) of iron/steel | $21,485 | $34,998 | $44,807 | $58,007 | $43,322 | $58,341 |
| Rivets of iron/steel | $13,264 | $25,267 | $51,703 | $42,942 | $28,953 | $24,448 |
| Cotters & cotter-pins, of iron/steel | $33,275 | $12,134 | $17,898 | $20,347 | $195,075 | $16,437 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $88,877 | $160,177 | $243,883 | $338,689 | $121,187 | $246,624 |
| Total | $1,672,345 | $1,653,583 | $2,119,741 | $2,918,232 | $3,183,092 | $3,026,989 |
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