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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $2,036 | $4,747 | $551,024 | $948,492 | $405,556 | $711,716 | $771,754 |
| Wood screws other than coach screws, of iron/steel | $208,037 | $276,402 | $3,188,362 | $6,020,529 | $3,967,077 | $10,986,931 | $14,637,054 |
| Screw hooks & screw rings, of iron/steel | $348,704 | $468,844 | $767,407 | $970,190 | $992,924 | $930,692 | $1,585,595 |
| Self-tapping screws of iron/steel | $3,659,293 | $3,558,133 | $8,168,637 | $13,045,683 | $10,533,935 | $16,537,276 | $23,628,029 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $143,695,732 | $178,103,411 | $229,788,518 | $327,700,009 | $240,047,513 | $334,669,161 | $405,726,061 |
| Nuts of iron/steel | $49,200,116 | $60,863,885 | $89,360,090 | $117,937,753 | $94,677,021 | $115,342,981 | $139,498,019 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $14,983,585 | $15,950,930 | $27,203,931 | $42,588,331 | $28,202,932 | $36,375,490 | $51,359,821 |
| Spring washers & oth. lock washers, of iron/steel | $5,146,062 | $6,651,876 | $9,099,429 | $11,918,881 | $8,278,397 | $11,463,766 | $13,701,693 |
| Washers (excl. of 7318.21) of iron/steel | $19,957,459 | $24,836,592 | $33,032,617 | $42,317,368 | $28,257,523 | $44,022,325 | $55,708,118 |
| Rivets of iron/steel | $5,440,012 | $5,997,828 | $7,535,684 | $9,876,351 | $6,785,604 | $10,778,348 | $12,490,031 |
| Cotters & cotter-pins, of iron/steel | $3,662,135 | $4,097,663 | $7,235,546 | $8,332,339 | $6,198,054 | $10,266,576 | $11,990,217 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $71,585,873 | $83,874,921 | $106,911,295 | $142,598,254 | $99,797,471 | $139,342,707 | $178,858,717 |
| Total | $317,889,044 | $384,685,232 | $522,842,540 | $724,254,180 | $528,144,007 | $731,427,969 | $909,955,109 |
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