Medical Grade Silicone Rubber Thread
Medical grade silicone rubber thread for surgical sutures and medical device elastic components. Silicone rubber, when vulcanized, qualifies as synthetic rubber under chapter note 4, and the thread is not covered, fitting tariff item 4007.00.10.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 the thread is presented as sterile surgical sutures
Sterile surgical sutures are classified in Chapter 90 as medical devices, not as rubber thread.
If the thread's cross-sectional dimension exceeds 5 mm
Chapter note 7 reclassifies thicker thread as strip, rods, or profile shapes of heading 40.08.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify that the silicone rubber meets the synthetic rubber definition in chapter note 4
• Ensure the thread is not covered with any material
• If the thread is sterilized and packaged for medical use, consider whether it is classified as a medical device under Chapter 90
Related Products under Tariff item 4007.00.10
Natural Rubber Latex Thread for Underwear
Natural rubber latex thread for underwear waistbands, extruded and cured to diameters under 5 mm. It is a continuous vulcanized rubber thread not covered with any material, directly matching tariff item 4007.00.10.
Neoprene Rubber Diving Suit Thread
Neoprene rubber diving suit thread, made of vulcanized polychloroprene for stitching wetsuit seams. As a synthetic rubber per chapter note 4, this thread is not covered and falls under tariff item 4007.00.10.
Rubber Core Yarn Thread
Rubber core yarn thread with minimal textile wrap for hosiery production. The rubber core provides essential elasticity, and the thread is classified under tariff item 4007.00.10 before full yarn integration, as the rubber is the essential character.
Vulcanized Rubber Elastic Thread
Vulcanized rubber elastic thread, fine and used in textile manufacturing for elastic properties in garments. It is extruded into continuous thin strands, not covered, and meets the specifications of tariff item 4007.00.10.
Vulcanized Rubber Orthodontic Elastics
Vulcanized rubber orthodontic elastics, small latex-based cords for dental braces. They are precisely sized and not covered, qualifying under tariff item 4007.00.10 as medical rubber thread.
Vulcanized Rubber Sewing Elastic Cord
Vulcanized rubber sewing elastic cord, narrow and produced from natural rubber latex, fully vulcanized for insertion in sewing operations. It is not covered, fitting tariff item 4007.00.10 as specialized rubber thread.