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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coach screws of iron/steel | | | | | $44,665 | $53 |
| Wood screws other than coach screws, of iron/steel | | | $1,045 | $1,630 | $1,067 | $3,618 |
| Screw hooks & screw rings, of iron/steel | | | | $14 | | $143 |
| Self-tapping screws of iron/steel | $3,645 | $3,952 | $11,823 | $7,680 | $22,546 | $1,457 |
| Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ... | $4,510 | $816 | $67,682 | $7,078 | $4,602 | $8,044 |
| Nuts of iron/steel | | | $3,543 | $3,153 | $890 | $1,682 |
| Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16) | $507 | $867 | | $1,093 | $18 | $276 |
| Spring washers & oth. lock washers, of iron/steel | $9,124 | | $15 | $2,219 | $16,120 | $335 |
| Washers (excl. of 7318.21) of iron/steel | $278 | $138 | $1,466 | $2,381 | $55,206 | $322 |
| Rivets of iron/steel | | | $741 | $23 | | |
| Cotters & cotter-pins, of iron/steel | | $104 | | | | $85 |
| Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... | $520 | $3,085 | $331 | $16,359 | $2,556 | $927 |
| Total | $18,584 | $8,962 | $86,646 | $41,630 | $147,670 | $16,942 |
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