M3 Self-Tapping Steel Screws
These are self-tapping screws made of iron or steel with a 3 mm thread diameter, designed for creating their own threads in pre-drilled holes. They fall under HTS 7318.14.10 due to their shank and thread diameter being less than 6 mm and self-tapping functionality. Commonly used in electronics assembly and light metal fabrication.
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 machine screws, not self-tapping
Machine screws require pre-tapped holes and classify under other threaded articles, not self-tapping screws.
If sold as spring washers instead
Spring washers are classified separately from screws under washer headings.
If imported as part of a screwdriver bit set
Knurled screwdriver bits resembling screws but designed for tools fall under interchangeable tools.
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Import Tips & Compliance
• Verify exact thread diameter under 6 mm with calipers to confirm classification under 7318.14.10; larger sizes shift to 7318.14.50
• Provide material test reports confirming iron or steel composition to avoid reclassification under non-ferrous chapters
• Label packages clearly with screw size, type (self-tapping), and quantity to facilitate customs inspection and prevent undervaluation penalties
Related Products under HTS 7318.14.10
No. 6 Sheet Metal Self-Tappers
Self-tapping screws with approximately 3.5 mm diameter shanks, specifically for fastening sheet metal panels without pre-drilling. Classified in HTS 7318.14.10 because their thread and shank diameters are under 6 mm and they tap their own threads. Ideal for HVAC ductwork and automotive trim installation.
Phillips #4 Self-Tapping Machine Screws
Steel self-tapping screws with #4 size (about 2.8 mm diameter) and Phillips drive, used in plastic housings and thin metals. HTS 7318.14.10 applies due to sub-6 mm dimensions and self-threading capability. Popular in appliance manufacturing and consumer electronics.
Torx T10 Self-Tapping Screws 4.2mm
4.2 mm diameter self-tapping screws featuring Torx T10 drive for high-torque applications in automotive interiors. Falls under HTS 7318.14.10 for self-tappers with shanks/threads under 6 mm. Provides superior tamper resistance compared to Phillips or slotted drives.
Chipboard Self-Tapping Screws #8 x 1/2"
Double-threaded self-tappers sized #8 (4 mm diameter) for particle board and MDF, with coarse lower threads for wood grip. HTS 7318.14.10 classification based on <6 mm diameter despite wood end-use, as they're self-tapping threaded steel articles. Used in furniture assembly.
Pan Head Self-Tapping Screws M4
M4 (4 mm) pan head self-tapping screws in zinc-plated steel for general metal-to-metal fastening. Under HTS 7318.14.10 for small-diameter self-tappers. Common in electrical enclosures and machinery guards.
Drywall Self-Tappers #6 x 1"
Bugle head self-tapping screws #6 diameter (3.5 mm) for direct fastening into steel studs without drilling. HTS 7318.14.10 due to self-tapping nature and sub-6 mm size. Standard for interior construction and partitioning.