Section XV — Base metals and articles of base metal
Chapter 73 — Articles of iron or steel
Heading 7318 — Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotterpins, washers (including spring was hers) and similar articles, of iron or steel.
National subdivision 7318.1 — Threaded articles:
Subheading 7318.16 — Nuts
HS code
7318.16.00
Nuts
Last Verified Date - 1 October 2026
Common commodities
Steel hex nuts with six sidesGalvanized square nuts for boltsLocking washers for mechanical joiningCastle nuts with external threadsFlange nuts for pipe connectionsWing nuts for securing without a wrenchCap nuts to cover bolt headsCoupling nuts for joining cylindrical partsHeavy-duty steel weld nutsStainless steel flange nuts with lock feature