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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $45,780 | $77 | $6 | $249 | $17,252 | $454,702 | $1,244 |
| Wood screws other than coach screws, of iron/steel | $1,380 | $572 | $2,490 | $11,363 | $12,874 | $1,634 | $2,881 |
| Screw hooks & screw rings, of iron/steel | $4,010 | $50,947 | $13,986 | $39,728 | $39,213 | $7,396 | $25,341 |
| Self-tapping screws of iron/steel | $162 | $1,273 | $2,932 | $873 | $772 | $16,148 | $1,799 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $485,588 | $1,173,313 | $653,182 | $497,056 | $949,809 | $2,806,795 | $1,286,071 |
| Nuts of iron/steel | $112,768 | $134,378 | $75,190 | $132,397 | $192,376 | $261,130 | $98,377 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $557,295 | $851,395 | $886,846 | $861,354 | $1,557,375 | $1,646,447 | $1,360,129 |
| Spring washers & oth. lock washers, of iron/steel | $3,349 | $3,982 | $8,846 | $619 | $4,599 | $10,570 | $5,536 |
| Washers (excl. of 7318.21) of iron/steel | $79,066 | $173,629 | $82,769 | $72,877 | $97,830 | $301,000 | $298,170 |
| Rivets of iron/steel | $644 | $2,888 | $14,801 | $973 | $31,453 | $3,695 | $64,923 |
| Cotters & cotter-pins, of iron/steel | $13,144 | $18,615 | $10,549 | $34,302 | $36,953 | $34,850 | $15,134 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $41,319 | $158,357 | $105,299 | $63,121 | $196,822 | $786,220 | $672,592 |
| Total | $1,344,505 | $2,569,426 | $1,856,896 | $1,714,912 | $3,137,328 | $6,330,587 | $3,832,197 |
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