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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $40,517 | $122,715 | $340,263 | $225,580 | $44,071 | $729,360 |
| Wood screws other than coach screws, of iron/steel | $1,641,803 | $2,394,222 | $4,624,003 | $4,494,265 | $3,184,248 | $3,986,800 |
| Screw hooks & screw rings, of iron/steel | $118,085 | $126,769 | $250,916 | $413,422 | $534,359 | $838,660 |
| Self-tapping screws of iron/steel | $1,984,497 | $2,827,287 | $3,146,912 | $3,314,006 | $2,507,840 | $3,495,480 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $31,652,424 | $35,495,201 | $56,728,953 | $70,358,964 | $72,524,007 | $81,921,730 |
| Nuts of iron/steel | $9,964,877 | $12,055,101 | $19,846,234 | $24,180,425 | $23,035,476 | $27,915,130 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $5,729,008 | $5,463,778 | $12,050,174 | $11,477,119 | $11,294,095 | $10,025,060 |
| Spring washers & oth. lock washers, of iron/steel | $2,153,063 | $3,813,033 | $4,679,566 | $9,549,163 | $7,144,308 | $7,782,160 |
| Washers (excl. of 7318.21) of iron/steel | $16,078,371 | $21,114,563 | $28,408,287 | $40,443,187 | $47,739,026 | $61,092,860 |
| Rivets of iron/steel | $1,434,496 | $1,782,122 | $3,165,708 | $3,985,773 | $3,818,963 | $4,807,550 |
| Cotters & cotter-pins, of iron/steel | $53,959,795 | $13,487,918 | $18,864,188 | $20,577,228 | $24,223,764 | $29,768,850 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $11,161,050 | $13,433,697 | $15,136,390 | $18,321,245 | $19,651,541 | $24,664,610 |
| Total | $135,917,986 | $112,116,406 | $167,241,594 | $207,340,377 | $215,701,698 | $257,028,250 |
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