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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $94,912 | $65,649 | $33,010 | $74,213 | $111,872 | $165,739 | $44,571 |
| Wood screws other than coach screws, of iron/steel | $82,341 | $130,906 | $150,020 | $70,419 | $62,564 | $105,894 | $120,891 |
| Screw hooks & screw rings, of iron/steel | $15,133 | $23,471 | $62,626 | $80,601 | $115,959 | $573,594 | $539,555 |
| Self-tapping screws of iron/steel | $29,764 | $48,238 | $114,206 | $59,269 | $103,258 | $206,533 | $325,792 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $6,218,261 | $6,522,935 | $11,343,075 | $11,006,900 | $8,690,589 | $8,433,285 | $11,803,193 |
| Nuts of iron/steel | $707,470 | $850,956 | $1,015,199 | $1,066,028 | $800,330 | $1,027,910 | $1,667,072 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $80,267 | $594,527 | $612,142 | $281,006 | $1,090,921 | $1,033,660 | $839,645 |
| Spring washers & oth. lock washers, of iron/steel | $50,490 | $123,292 | $79,012 | $53,083 | $94,449 | $465,795 | $368,437 |
| Washers (excl. of 7318.21) of iron/steel | $584,821 | $2,375,296 | $1,878,219 | $1,596,658 | $720,290 | $1,033,906 | $2,079,730 |
| Rivets of iron/steel | $272,431 | $280,676 | $510,782 | $176,926 | $272,615 | $404,748 | $422,258 |
| Cotters & cotter-pins, of iron/steel | $499,119 | $916,671 | $871,266 | $949,698 | $983,793 | $1,149,191 | $1,935,002 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $218,655 | $355,918 | $429,704 | $516,943 | $946,540 | $1,923,950 | $654,825 |
| Total | $8,853,664 | $12,288,535 | $17,099,261 | $15,931,744 | $13,993,180 | $16,524,205 | $20,800,971 |
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