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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $204,383 | $767,671 | $654,945 | $2,898,311 | $4,482,939 | $2,248,225 | $2,408,778 |
| Wood screws other than coach screws, of iron/steel | $195,996 | $310,230 | $294,561 | $283,557 | $448,430 | $549,443 | $461,880 |
| Screw hooks & screw rings, of iron/steel | $346,596 | $481,787 | $413,770 | $527,442 | $508,677 | $727,096 | $670,702 |
| Self-tapping screws of iron/steel | $516,734 | $334,559 | $351,796 | $436,252 | $712,722 | $607,550 | $703,990 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $15,044,594 | $19,152,835 | $23,074,893 | $31,054,295 | $57,647,048 | $48,646,941 | $49,939,544 |
| Nuts of iron/steel | $3,477,570 | $4,441,782 | $6,313,070 | $7,359,278 | $6,896,197 | $5,909,233 | $6,497,823 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $2,114,051 | $3,518,665 | $3,284,318 | $6,337,063 | $6,231,681 | $8,496,250 | $5,235,375 |
| Spring washers & oth. lock washers, of iron/steel | $711,080 | $784,695 | $517,830 | $1,738,876 | $1,025,398 | $1,029,703 | $1,337,632 |
| Washers (excl. of 7318.21) of iron/steel | $1,727,171 | $2,424,335 | $3,177,546 | $3,872,305 | $4,543,985 | $3,713,522 | $4,160,311 |
| Rivets of iron/steel | $471,164 | $451,488 | $674,083 | $612,666 | $417,786 | $681,702 | $1,196,250 |
| Cotters & cotter-pins, of iron/steel | $2,210,381 | $2,423,163 | $3,244,500 | $4,379,857 | $4,782,627 | $3,946,006 | $5,849,144 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $1,944,664 | $2,754,895 | $4,809,570 | $9,153,553 | $24,794,362 | $11,572,700 | $8,282,986 |
| Total | $28,964,384 | $37,846,105 | $46,810,882 | $68,653,455 | $112,491,852 | $88,128,371 | $86,744,415 |
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