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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $1,624,820 | $1,981,990 | $2,598,600 | $2,948,320 | $1,652,340 | $3,570,127 | $4,331,142 |
| Wood screws other than coach screws, of iron/steel | $185,658 | $196,220 | $942,238 | $1,537,080 | $996,948 | $1,552,025 | $3,291,385 |
| Screw hooks & screw rings, of iron/steel | $352,885 | $415,065 | $7,673,170 | $771,572 | $414,394 | $1,064,314 | $2,186,583 |
| Self-tapping screws of iron/steel | $13,604,711 | $11,768,500 | $4,689,472 | $8,489,989 | $7,112,447 | $8,188,238 | $7,624,316 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $218,285,536 | $237,609,983 | $278,937,521 | $339,452,851 | $270,730,674 | $403,963,083 | $457,793,048 |
| Nuts of iron/steel | $90,581,986 | $96,029,313 | $107,697,235 | $142,557,833 | $98,918,361 | $163,955,552 | $171,666,321 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $23,169,722 | $27,485,802 | $31,017,992 | $27,474,371 | $26,295,452 | $38,641,326 | $40,163,281 |
| Spring washers & oth. lock washers, of iron/steel | $8,005,172 | $9,158,429 | $12,238,667 | $12,062,902 | $10,652,330 | $13,769,047 | $15,612,906 |
| Washers (excl. of 7318.21) of iron/steel | $49,028,914 | $59,547,510 | $70,642,681 | $100,812,333 | $75,159,715 | $104,442,583 | $115,879,442 |
| Rivets of iron/steel | $29,197,130 | $25,174,548 | $23,364,288 | $26,380,787 | $74,592,292 | $27,859,889 | $28,681,321 |
| Cotters & cotter-pins, of iron/steel | $24,079,793 | $26,238,916 | $26,689,488 | $40,082,049 | $30,274,799 | $50,964,735 | $55,833,872 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $35,012,152 | $37,377,247 | $50,146,495 | $48,775,182 | $42,378,589 | $52,559,494 | $57,704,705 |
| Total | $493,128,479 | $532,983,523 | $616,637,847 | $751,345,269 | $639,178,341 | $870,530,413 | $960,768,322 |
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