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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Coach screws of iron/steel | $4,892 | $75,524 | $11,740 | $50,203 | $10,090 | $48,346 |
| Wood screws other than coach screws, of iron/steel | $194,831 | $471,590 | $998,968 | $1,149,704 | $592,934 | $744,008 |
| Screw hooks & screw rings, of iron/steel | $165,395 | $39,140 | $54,769 | $17,153 | $70,850 | $137,194 |
| Self-tapping screws of iron/steel | $64,081 | $359,322 | $610,431 | $934,963 | $591,251 | $926,016 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $881,542 | $1,343,279 | $1,925,852 | $2,200,190 | $1,399,315 | $1,783,534 |
| Nuts of iron/steel | $64,826 | $164,077 | $200,514 | $357,736 | $226,873 | $486,143 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $139,393 | $329,305 | $416,747 | $334,906 | $343,552 | $1,221,472 |
| Spring washers & oth. lock washers, of iron/steel | $33,836 | $37,270 | $87,569 | $61,128 | $53,913 | $38,503 |
| Washers (excl. of 7318.21) of iron/steel | $80,792 | $87,389 | $122,171 | $110,441 | $60,766 | $186,328 |
| Rivets of iron/steel | $60,333 | $50,244 | $54,428 | $52,925 | $39,915 | $78,611 |
| Cotters & cotter-pins, of iron/steel | $39,368 | $9,583 | $45,160 | $138,545 | $113,255 | $143,855 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $255,942 | $436,108 | $309,312 | $313,332 | $197,336 | $394,835 |
| Total | $1,985,231 | $3,402,831 | $4,837,661 | $5,721,226 | $3,700,050 | $6,188,845 |
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