1.6mm x 6mm Micro Set Screw
Ultra-small cup point set screw, 1.6mm diameter x 6mm, steel, classified 7318.15.60.80 as other small screws. Locks collars, pulleys in miniature mechanisms and robotics.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If tip diameter exceeds 6.35mm
Larger set screws have size exclusions.
If transmission shaft component
Set screws permanently installed in shafts classify as transmission parts.
If safety pins design
Pin-like threaded safety devices shift to pin heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Cup point depth measurement critical; distinguishes from headless pins
• High precision imports need dimensional inspection reports
• Avoid 'pin' terminology in invoices to prevent 7318.21 classification
Related Products under HTS 7318.15.60.80
M3 x 10mm Phillips Pan Head Machine Screw
A small steel machine screw with a 3mm diameter shank and thread, 10mm length, and Phillips pan head, certified under 7318.15.60.80 due to its diameter under 6mm and non-specialized design. Commonly used in electronics assembly and small machinery. Does not qualify as wood screw or self-tapping.
M4 x 16mm Flat Head Socket Cap Screw
Precision steel socket cap screw, 4mm diameter x 16mm length with flat head for flush mounting, under 7318.15.60.80 for shanks/threads <6mm. Ideal for machinery and equipment assembly where low-profile is needed.
2.5mm x 8mm Slotted Cheese Head Screw
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M2.5 x 12mm Thumb Screw
Knurled thumb screw M2.5 diameter x 12mm length, steel construction, under 7318.15.60.80 for small threaded articles. Allows hand-tightening in equipment panels and adjustable mechanisms.
M3.5 x 20mm Truss Head Screw
Low-profile truss head machine screw M3.5 x 20mm, steel, <6mm diameter qualifies for 7318.15.60.80. Provides large bearing surface for sheet metal and plastic fastening.
No. 4 x 1/4-inch Oval Head Screw
Imperial No. 4 (≈2.8mm) x 1/4-inch steel screw with oval countersunk head, under 7318.15.60.80. Used in cabinetry, electronics chassis, and light-duty applications.