M8 x 50mm Alloy Steel Set Screw
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If diameter under 6mm, e.g., M4
Set screws with shanks/threads less than 6mm diameter classify under the 'less than 6mm' subheading in 7318.15.20.
If non-threaded (smooth shank)
Non-threaded articles like plain pins or dowels fall under 7318.29, excluding threaded screws.
If imported as part of a complete pulley or gear assembly
Assembled machinery parts with integral set screws classify under Chapter 84 as transmission components rather than individual fasteners.
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Import Tips & Compliance
• 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
Related Products under HTS 7318.15.80.20
1/4-20 UNC Cup Point Set Screw
Imperial 1/4-20 UNC set screw with cup point, made from carbon steel, measuring 6.35mm diameter and typically 1/2 to 2 inches long for locking components in place. Classified in HTS 7318.15.80.20 due to thread diameter over 6mm and headless design for set screw applications in equipment assembly.
M12 x 75mm Flat Point Set Screw
Heavy-duty M12 metric set screw with flat point for adjustable positioning against shafts or rods, constructed from medium carbon steel, 12mm diameter exceeding the 6mm threshold. HTS 7318.15.80.20 applies to these other set screws used in conveyor systems and heavy machinery.
3/8-16 UNC Cone Point Set Screw
9.525mm diameter 3/8-16 UNC cone point set screw in hardened steel, ideal for anti-rotation locking in motors and pumps. It qualifies for HTS 7318.15.80.20 as an other set screw with shank/thread diameter of 6mm or more.
M10 x 60mm Knurled Cup Set Screw
M10 knurled cup point set screw for tool-free installation, steel construction with 10mm diameter for securing handles and levers. Falls under HTS 7318.15.80.20 for set screws over 6mm diameter.
M16 x 100mm Dog Point Set Screw
Large M16 dog point set screw for precise shaft alignment in heavy equipment, 16mm diameter carbon steel. HTS 7318.15.80.20 covers these oversized set screws.
1/2-13 UNC Half-Dog Set Screw
12.7mm 1/2-13 UNC half-dog point set screw for adjustable stops, alloy steel for durability. Meets HTS 7318.15.80.20 criteria for >6mm set screws.