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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $3,315,534 | $4,271,414 | $5,833,222 | $5,647,875 | $5,629,709 | $6,415,396 |
| Wood screws other than coach screws, of iron/steel | $25,129,438 | $28,327,015 | $35,214,817 | $30,903,438 | $26,788,541 | $30,712,763 |
| Screw hooks & screw rings, of iron/steel | $1,929,400 | $2,100,531 | $2,768,378 | $3,994,623 | $2,481,480 | $3,021,427 |
| Self-tapping screws of iron/steel | $31,153,839 | $42,941,534 | $56,513,625 | $49,289,605 | $32,977,594 | $38,785,370 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $238,150,342 | $275,636,883 | $337,123,160 | $388,355,115 | $230,442,830 | $313,574,842 |
| Nuts of iron/steel | $69,996,685 | $82,239,803 | $113,562,534 | $118,524,327 | $73,866,909 | $98,170,537 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $36,135,222 | $29,992,867 | $43,441,718 | $51,272,918 | $35,014,109 | $46,657,786 |
| Spring washers & oth. lock washers, of iron/steel | $5,159,155 | $4,533,981 | $5,236,174 | $5,796,697 | $4,564,025 | $3,869,919 |
| Washers (excl. of 7318.21) of iron/steel | $27,636,912 | $34,149,958 | $45,899,906 | $52,540,117 | $40,533,623 | $30,541,739 |
| Rivets of iron/steel | $2,907,775 | $4,428,452 | $6,610,070 | $6,807,509 | $4,784,415 | $2,607,787 |
| Cotters & cotter-pins, of iron/steel | $18,473,506 | $12,385,845 | $14,706,581 | $16,930,363 | $11,437,961 | $10,950,851 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $23,968,317 | $29,438,839 | $30,074,719 | $28,735,939 | $20,938,443 | $21,998,484 |
| Total | $483,956,125 | $550,447,122 | $696,984,904 | $758,798,526 | $489,459,639 | $607,306,901 |
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