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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | | | $14,855 | $161,195 | | |
| Wood screws other than coach screws, of iron/steel | $731,520 | $10,759,631 | $24,181,389 | $31,965,704 | $25,492,276 | $45,328,103 |
| Screw hooks & screw rings, of iron/steel | $134,920 | $260,617 | $278,374 | $311,028 | $592,033 | $389,223 |
| Self-tapping screws of iron/steel | $113,809 | $2,569,338 | $1,532,653 | $1,664,833 | $7,798,093 | $400,386 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $33,291,789 | $38,035,964 | $52,624,668 | $41,220,887 | $37,833,804 | $85,084,337 |
| Nuts of iron/steel | $4,639,259 | $9,555,543 | $14,069,800 | $9,458,487 | $7,867,333 | $13,877,298 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $393,187 | $178,884 | $138,211 | $199,209 | $986,224 | $2,830,000 |
| Spring washers & oth. lock washers, of iron/steel | $198,407 | $244,496 | $249,085 | $1,647,058 | $1,032,055 | $2,432,574 |
| Washers (excl. of 7318.21) of iron/steel | $1,591,688 | $1,032,360 | $5,083,143 | $6,324,444 | $7,500,069 | $8,680,011 |
| Rivets of iron/steel | $29,365 | $255,152 | $612,807 | $133,368 | $34,220 | $28,328 |
| Cotters & cotter-pins, of iron/steel | $39,706,175 | $231,758 | $537,942 | $661,693 | $2,869,448 | $1,574,936 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $4,114,686 | $7,811,857 | $7,555,312 | $10,320,960 | $8,646,294 | $7,641,269 |
| Total | $84,944,805 | $70,935,600 | $106,878,239 | $104,068,866 | $100,651,849 | $168,266,465 |
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