M8 Hex Nut
A standard hexagonal nut with M8 internal threading, made from carbon steel, used to secure bolts in machinery and construction. It falls under HTS 7318.16.00 as a threaded nut of iron or steel, matching the chapter's definition for such fasteners.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If unthreaded or locknut style without full threading
Non-threaded nuts or those without standard threading classify under other threaded articles.
If sold as part of a bolt-nut assembly set
Assemblies or sets of screws/bolts with nuts may shift to non-threaded or similar categories.
If specifically designed for automotive engines
Nuts for specific machinery like vehicles can classify under other articles of iron/steel.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify thread pitch and size compliance with ASTM or ISO standards to avoid misclassification
• Include material certificates showing iron/steel composition for customs valuation
• Check for anti-dumping duties on Chinese-origin nuts; provide country-of-origin documentation
Related Products under HTS 7318.16.00
Heavy Duty Flange Nut 1/2-13
A 1/2-13 UNC heavy-duty flange nut of alloy steel with integrated washer base for high-torque applications in trucks and equipment. It qualifies under HTS 7318.16.00 as a threaded nut of iron or steel.
Nylon Insert Lock Nut M10
M10 lock nut with nylon insert for vibration resistance, made from steel, common in automotive and appliance assembly. Falls under HTS 7318.16.00 for threaded steel nuts.
prevailing Torque Lock Nut 1/4-20
1/4-20 prevailing torque lock nut deformed thread steel for vibration-prone environments. HTS 7318.16.00 threaded nut.
High Crown Hex Nut M20
M20 high crown hex nut steel for high-pressure applications. HTS 7318.16.00.
Slotted Nut 5/16-18
5/16-18 slotted steel nut for cotter pin security in machinery. HTS 7318.16.00.
Castle Nut 7/16-20
7/16-20 castle nut steel with drilled holes for safety wiring. HTS 7318.16.00.