Commodity200520062007200820092010
Coach screws of iron/steel $2,918$960$104$647$173
Wood screws other than coach screws, of iron/steel$136$2,738$1,155$11,811$2,537$3,771
Screw hooks & screw rings, of iron/steel $52 $1,070  
Self-tapping screws of iron/steel$4,183$1,912$446$1,668$5,199$19,563
Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ...$8,125$12,072$16,793$44,598$34,232$15,870
Nuts of iron/steel$95$384$1,638$529$1,780$1,396
Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16)$480$14,113$11,477$4,182$15,064$8,966
Spring washers & oth. lock washers, of iron/steel $574$235$24$627$4,488
Washers (excl. of 7318.21) of iron/steel $49$559$755$68$127
Rivets of iron/steel$242$1,217$679$603$711$196
Cotters & cotter-pins, of iron/steel $13,708 $694 $168
Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ... $551$1,142$737$6,418$45,788
Total$13,261$50,288$35,084$66,775$67,283$100,506