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| Commodity | 2005 | 2006 | 2007 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | $13,103 | $745 | $15,372 | $2,174 | $1,039 | $22 |
| Wood screws other than coach screws, of iron/steel | $39,175 | $22,924 | $44,175 | $4,729 | $17,840 | $5,080 |
| Screw hooks & screw rings, of iron/steel | $5,074 | $7,138 | $5,642 | $5,251 | $10,832 | $1,469 |
| Self-tapping screws of iron/steel | $128,127 | $178,371 | $138,154 | $85,208 | $94,522 | $38,694 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $403,173 | $537,167 | $1,479,653 | $495,976 | $528,264 | $269,477 |
| Nuts of iron/steel | $24,826 | $54,458 | $45,148 | $50,885 | $39,265 | $22,990 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $22,347 | $62,659 | $72,683 | $42,701 | $23,618 | $12,472 |
| Spring washers & oth. lock washers, of iron/steel | $1,524 | $4,131 | $14,637 | $7,190 | $3,322 | $5,363 |
| Washers (excl. of 7318.21) of iron/steel | $13,689 | $33,240 | $35,540 | $25,998 | $18,705 | $17,638 |
| Rivets of iron/steel | $3,410 | $2,603 | $43,477 | $106,188 | $7,554 | $2,085 |
| Cotters & cotter-pins, of iron/steel | $2,659 | $3,280 | $6,846 | $13,894 | $5,348 | $2,214 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $389,865 | $70,434 | $162,606 | $98,160 | $41,961 | $26,134 |
| Total | $1,046,972 | $977,150 | $2,063,933 | $938,354 | $792,270 | $403,638 |
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