M3 x 20mm Flat Socket Countersunk Screw
Countersunk head socket flat screw M3x20mm for flush mounting in metal/wood surfaces. HTS 7318.15.60.40 for small socket screws; 100° countersink angle for smooth finish. Used in cabinetry and electronics enclosures.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as threaded nails/staples
Nail-like partial threads classify under Chapter 73 nails rather than full-thread screws.
If coach/body screws >1/4 inch
Larger coach screw dimensions exceed small socket provisions.
If integral compressor parts
Fasteners as original compressor equipment parts enter under Chapter 84 machinery.
Not sure which classification is right?
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Import Tips & Compliance
• Measure head angle precisely (82°/100°) as countersunk vs cap head determines exact subheading
• Passivate stainless versions for corrosion resistance certification if marine/aircraft bound
• Avoid mixing lengths/diameters in same carton to prevent inventory classification disputes
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