Coach Screw Self-Tapper 1/4 Inch (6.35mm)
A 1/4 inch (6.35 mm) coach style self-tapping screw for heavy timber, providing a secure hold without pre-drilling. Its larger diameter and aggressive threads are designed for demanding applications. Classified under 7318.14.00 as a self-tapping screw of iron or steel, with a shank diameter over 6 mm.
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 screw is not self-tapping but requires a pre-drilled hole
Self-tapping screws are distinguished by their thread-cutting ability.
If the product is a similar threaded article
This covers other threaded articles of iron or steel.
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
• Confirm the screw's diameter is 6.35 mm, which is over 6 mm, and ensure it is classified under 7318.14.00
• Declare the product as a self-tapping screw for heavy timber to align with the tariff heading
• Keep the product's specifications, including diameter and thread type, for CBSA review
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. The stainless steel construction provides corrosion resistance, and the self-tapping design cuts threads during installation.
4.2mm Hex Washer Head Self-Tapper
4.2 mm hex washer head self-tapper in stainless steel, featuring an integrated washer head for load distribution. Used in outdoor equipment assembly where corrosion resistance and secure fastening are essential.
Bugle Head Drywall Self-Tapper 7mm
A 7 mm bugle head self-tapping screw for securing drywall to metal studs, countersinking smoothly without tearing the paper. Its larger diameter (over 6 mm) provides a stronger hold in heavier applications. This product falls under 7318.14.00 as a self-tapping screw of iron or steel, with a shank diameter of 7 mm.
Chipboard Self-Tapping Screws #8 x 1/2"
Chipboard self-tapping screws, #8 size (4 mm diameter), designed with double threads for secure grip in particle board and MDF. Their coarse lower threads cut into wood-based materials without pre-drilling, making them essential for furniture and cabinet assembly.
Construction Grade Self-Tapping Tek 10G
A 10 gauge (approximately 7.5 mm) construction Tek self-tapping screw for steel purlins, designed to drill its own pilot hole and tap threads in one operation. Its larger diameter provides a strong hold in structural applications. This product falls under 7318.14.00 as a self-tapping screw of iron or steel, with a shank diameter over 6 mm.
Drywall Self-Tappers #6 x 1"
Drywall self-tapping screws, #6 size (3.5 mm diameter), with bugle heads designed for direct fastening into steel studs without pre-drilling. Their hardened steel construction and sharp points allow quick installation in interior construction and partitioning.