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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $537,001 | $592,554 | $396,572 | $326,792 | $363,522 | $512,824 |
| Wood screws other than coach screws, of iron/steel | $7,009,928 | $10,101,532 | $17,506,948 | $22,764,158 | $16,065,172 | $19,220,997 |
| Screw hooks & screw rings, of iron/steel | $501,592 | $565,049 | $995,729 | $591,589 | $504,241 | $695,034 |
| Self-tapping screws of iron/steel | $36,438,482 | $39,936,324 | $43,873,833 | $46,930,231 | $38,057,056 | $41,695,529 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $157,469,149 | $167,911,205 | $215,655,348 | $209,102,429 | $152,540,670 | $198,028,926 |
| Nuts of iron/steel | $35,370,371 | $29,626,042 | $35,646,370 | $41,037,779 | $24,937,504 | $32,828,934 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $25,032,097 | $31,040,652 | $31,914,075 | $38,076,364 | $29,834,697 | $72,292,699 |
| Spring washers & oth. lock washers, of iron/steel | $11,287,262 | $12,073,180 | $14,893,282 | $14,519,243 | $10,058,957 | $11,812,512 |
| Washers (excl. of 7318.21) of iron/steel | $5,795,163 | $2,917,113 | $4,364,245 | $5,163,482 | $3,366,072 | $4,165,813 |
| Rivets of iron/steel | $5,659,113 | $6,319,893 | $9,218,731 | $7,421,693 | $9,421,431 | $11,687,628 |
| Cotters & cotter-pins, of iron/steel | $1,750,995 | $1,355,251 | $1,695,028 | $1,244,297 | $1,686,952 | $4,184,250 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $20,011,024 | $23,540,224 | $28,685,494 | $27,208,561 | $15,937,812 | $22,837,305 |
| Total | $306,862,177 | $325,979,019 | $404,845,655 | $414,386,618 | $302,774,086 | $419,962,451 |
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