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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $3,590,108 | $4,131,785 | $6,219,784 | $4,625,687 | $4,913,273 | $4,479,246 | $4,187,328 |
| Wood screws other than coach screws, of iron/steel | $468,005 | $692,831 | $739,370 | $1,684,265 | $3,938,347 | $3,455,677 | $2,019,306 |
| Screw hooks & screw rings, of iron/steel | $845,416 | $1,114,876 | $1,078,839 | $1,595,287 | $898,358 | $1,393,135 | $1,288,516 |
| Self-tapping screws of iron/steel | $7,678,611 | $6,861,891 | $5,520,223 | $7,645,298 | $8,753,301 | $8,028,880 | $7,922,924 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $87,298,602 | $104,557,882 | $117,833,889 | $160,112,240 | $161,612,918 | $223,346,441 | $199,071,761 |
| Nuts of iron/steel | $18,346,205 | $22,072,253 | $31,369,981 | $37,463,445 | $31,093,383 | $47,836,969 | $48,183,901 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $20,551,312 | $26,256,039 | $28,751,078 | $23,681,374 | $25,831,266 | $33,011,461 | $29,134,468 |
| Spring washers & oth. lock washers, of iron/steel | $1,884,362 | $2,273,350 | $2,982,066 | $3,386,383 | $3,798,849 | $3,760,683 | $4,217,301 |
| Washers (excl. of 7318.21) of iron/steel | $13,149,944 | $10,874,491 | $11,582,575 | $17,421,782 | $17,317,924 | $27,832,298 | $21,561,969 |
| Rivets of iron/steel | $8,716,807 | $12,140,191 | $12,521,284 | $11,725,375 | $6,826,946 | $10,167,558 | $11,488,666 |
| Cotters & cotter-pins, of iron/steel | $12,031,599 | $8,368,814 | $6,482,943 | $4,591,544 | $5,351,221 | $7,115,230 | $6,162,567 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $21,726,239 | $30,383,459 | $30,636,418 | $33,881,153 | $30,915,253 | $81,372,448 | $60,702,070 |
| Total | $196,287,210 | $229,727,862 | $255,718,450 | $307,813,833 | $301,251,039 | $451,800,026 | $395,940,777 |
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