Chipboard Self-Tapping Screws #8 x 1/2"
Chipboard self-tapping screws, size #8 (4 mm diameter), with double-thread design and coarse lower threads for secure grip in particle board and MDF. These screws create their own mating threads upon installation, qualifying them as self-tapping screws under tariff item 7318.14.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪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 screws are not self-tapping but require pre-drilled pilot holes
Other screws with threads, not self-tapping, fall under this item.
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
• Ensure the screws are properly classified as self-tapping screws under 7318.14.00, not wood screws, to avoid duty rate discrepancies
• Declare the correct steel composition (e.g
• carbon steel) and finish (e.g
• zinc-plated) on the CBSA customs declaration
• Keep supplier documentation showing the thread diameter and material specifications in case of inspection
Related Products under Tariff item 7318.14.00
3.5mm Pan Head Stainless Self-Tapping Screw
3.5 mm pan head stainless steel self-tapping screw with a low-profile head, used in appliance manufacturing and electronics. Its self-tapping design and sub-6 mm diameter classify it under tariff item 7318.14.00.
4.2mm Hex Washer Head Self-Tapper
4.2 mm hex washer head self-tapper in stainless steel, featuring an integrated washer head for outdoor equipment assembly. Its self-tapping function and sub-6 mm diameter place it under tariff item 7318.14.00.
Drywall Self-Tappers #6 x 1"
Drywall self-tapping screws, size #6 (3.5 mm diameter), with bugle heads designed for direct fastening into steel studs without pre-drilling. Their self-tapping nature and sub-6 mm diameter place them under tariff item 7318.14.00.
Hex Washer Head Self-Tappers #10
Hex washer head self-tapping screws, size #10 (4.8 mm diameter), combining a screw, washer, and hex drive in one piece. These are used in roofing and outdoor metal applications, and their self-tapping feature with a diameter under 6 mm classifies them under tariff item 7318.14.00.
M3 Self-Tapping Steel Screws
M3 self-tapping steel screws with a 3 mm thread diameter, made of iron or steel, designed to create their own threads in pre-drilled holes. Their small diameter and self-tapping function place them under tariff item 7318.14.00.
M3 Stainless Steel Self-Tapping Screw
M3 stainless steel self-tapping screw with a 3 mm shank diameter, used for fastening thin metal or plastic sheets in electronics enclosures. It cuts its own threads upon installation, fitting under tariff item 7318.14.00.