Commodity2005200620072008200920102011
Coach screws of iron/steel  $4,000  $44,000$53,000
Wood screws other than coach screws, of iron/steel  $12,000$215,000$19,000$1,000$5,000
Screw hooks & screw rings, of iron/steel $16,000$10,000$36,000$37,000$48,000$7,000
Self-tapping screws of iron/steel$2,000$3,000$15,000$3,000$67,000$104,000$97,000
Screws & bolts (excl. of 7318.11-7318.14), whether or not with their nuts/w ...$22,565,000$12,356,000$5,449,000$7,965,000$3,356,000$4,341,000$5,826,000
Nuts of iron/steel$32,000$64,000$83,000$101,000$51,000$72,000$63,000
Threaded arts. of iron/steel (excl. of 73.07, 7318.11-7318.16)$12,127,000$16,813,000$11,165,000$9,949,000$4,925,000$544,000$472,000
Spring washers & oth. lock washers, of iron/steel$17,000 $27,000$14,000$18,000$6,000 
Washers (excl. of 7318.21) of iron/steel$61,000$1,000$5,000$7,000$218,000$57,000$806,000
Rivets of iron/steel$1,000$6,000$114,000$114,000$197,000$309,000$579,000
Cotters & cotter-pins, of iron/steel$343,000$122,000 $21,000$156,000$23,000$58,000
Non-threaded arts. sim. to rivets, cotters and the like, of iron/steel (exc ...$3,871,000$3,907,000$4,674,000$4,954,000$4,388,000$6,156,000$5,486,000
Total$39,019,000$33,288,000$21,558,000$23,379,000$13,432,000$11,705,000$13,452,000