7318.15.80.20/M8 x 50mm Alloy Steel Set Screw/China

M8 x 50mm Alloy Steel Set Screw from China

A precision-machined set screw made of alloy steel with M8 threading and 50mm length, designed to secure pulleys, gears, and collars on shafts without a protruding head. It falls under HTS 7318.15.80.20 as a set screw with shank/thread diameter of 6mm or more (M8 = 8mm). Used in industrial machinery for its cup point tip that digs into the shaft surface.

Duty Rate — China → United States

43.5%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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Import Tips

• Verify shank/thread diameter exceeds 6mm via caliper measurement to confirm 7318.15.80.20 classification; smaller sizes shift to other subheadings

• Include material test certificates (e.g

• alloy steel composition) for customs valuation and anti-dumping checks on steel products

• Avoid misclassification as bolts by ensuring no head protrusion and documenting end-use as fixed-position fasteners