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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $352,644 | $297,860 | $192,898 | $180,086 | $342,103 | $780,017 | $135,657 |
| Wood screws other than coach screws, of iron/steel | $9,470 | $13,046 | $12,932 | $44,822 | $13,615 | $11,659 | $27,658 |
| Screw hooks & screw rings, of iron/steel | $43,186 | $51,111 | $56,661 | $106,562 | $77,611 | $40,346 | $80,697 |
| Self-tapping screws of iron/steel | $36,350 | $49,225 | $50,431 | $135,320 | $73,879 | $123,995 | $105,784 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $4,859,747 | $4,802,440 | $6,026,504 | $7,449,232 | $6,545,742 | $9,985,242 | $11,009,285 |
| Nuts of iron/steel | $1,093,118 | $1,116,089 | $1,707,297 | $2,373,674 | $1,673,783 | $2,208,182 | $2,125,260 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $415,846 | $669,094 | $973,188 | $1,897,696 | $944,070 | $732,489 | $983,974 |
| Spring washers & oth. lock washers, of iron/steel | $339,360 | $344,951 | $353,517 | $507,228 | $302,587 | $404,021 | $552,784 |
| Washers (excl. of 7318.21) of iron/steel | $492,872 | $527,249 | $908,359 | $1,441,106 | $1,039,467 | $1,714,066 | $1,975,029 |
| Rivets of iron/steel | $120,276 | $122,144 | $234,725 | $362,334 | $109,850 | $331,307 | $394,891 |
| Cotters & cotter-pins, of iron/steel | $139,145 | $171,091 | $396,004 | $315,292 | $212,290 | $265,633 | $245,610 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $299,244 | $387,312 | $523,972 | $844,855 | $733,532 | $1,036,032 | $1,082,395 |
| Total | $8,201,258 | $8,551,612 | $11,436,488 | $15,658,207 | $12,068,529 | $17,632,989 | $18,719,024 |
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