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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $145,122 | $577,977 | $276,127 | $122,330 | $384,918 | $288,013 | $426,350 |
| Wood screws other than coach screws, of iron/steel | $260,461 | $213,722 | $55,666 | $127,666 | $69,573 | $102,552 | $108,040 |
| Screw hooks & screw rings, of iron/steel | $11,351 | $35 | | $527 | $6,905 | $1,734 | |
| Self-tapping screws of iron/steel | $700,289 | $506,836 | $457,909 | $625,994 | $278,824 | $304,371 | $210,978 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $1,991,215 | $2,451,065 | $2,714,373 | $4,323,989 | $3,186,643 | $4,621,186 | $10,901,185 |
| Nuts of iron/steel | $447,950 | $721,587 | $551,726 | $1,273,475 | $1,213,491 | $1,315,064 | $1,678,773 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $23,704 | $37,157 | $213,837 | $277,215 | $150,458 | $175,788 | $405,598 |
| Spring washers & oth. lock washers, of iron/steel | $21,108 | $118,710 | $114,084 | $133,646 | $121,712 | $221,823 | $310,786 |
| Washers (excl. of 7318.21) of iron/steel | $51,527 | $165,841 | $204,159 | $142,826 | $270,691 | $216,550 | $430,986 |
| Rivets of iron/steel | $5,857 | $3,577 | $6,021 | $22,724 | $32,544 | $105,170 | $60,856 |
| Cotters & cotter-pins, of iron/steel | $223,178 | $247,951 | $359,381 | $409,310 | $572,027 | $589,887 | $748,854 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $66,600 | $141,611 | $184,177 | $264,717 | $51,010 | $146,977 | $129,591 |
| Total | $3,948,362 | $5,186,069 | $5,137,460 | $7,724,419 | $6,338,796 | $8,089,115 | $15,411,997 |
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