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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $1,247,283 | $1,603,536 | $838,704 | $3,262,258 | $3,147,837 | $6,037,577 | $3,140,935 |
| Wood screws other than coach screws, of iron/steel | $1,219,816 | $1,255,904 | $1,264,384 | $1,208,464 | $1,235,119 | $2,865,719 | $2,376,693 |
| Screw hooks & screw rings, of iron/steel | $134,709 | $301,083 | $216,545 | $439,606 | $454,420 | $250,692 | $505,378 |
| Self-tapping screws of iron/steel | $676,150 | $42,610 | $480,409 | $978,468 | $728,275 | $445,114 | $548,150 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $13,866,975 | $10,999,979 | $9,690,136 | $24,012,033 | $23,259,999 | $30,184,631 | $38,211,157 |
| Nuts of iron/steel | $2,884,106 | $1,950,600 | $1,858,747 | $3,885,269 | $3,642,895 | $5,597,389 | $3,804,629 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $5,543,635 | $4,967,826 | $4,434,195 | $16,496,268 | $15,167,441 | $30,643,091 | $15,069,006 |
| Spring washers & oth. lock washers, of iron/steel | $2,976,254 | $572,920 | $620,506 | $7,519,417 | $2,324,938 | $5,172,655 | $2,235,434 |
| Washers (excl. of 7318.21) of iron/steel | $2,206,972 | $890,403 | $1,056,641 | $5,407,948 | $6,148,940 | $5,281,713 | $9,787,287 |
| Rivets of iron/steel | $498,790 | $212,679 | $355,878 | $1,485,239 | $742,482 | $1,777,659 | $863,031 |
| Cotters & cotter-pins, of iron/steel | $997,286 | $514,296 | $967,181 | $2,509,330 | $3,046,693 | $6,068,707 | $2,461,743 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $15,185,860 | $21,476,103 | $18,700,507 | $43,089,143 | $32,186,633 | $54,847,044 | $40,149,773 |
| Total | $47,437,836 | $44,787,939 | $40,483,833 | $110,293,443 | $92,085,672 | $149,171,991 | $119,153,216 |
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