Boat Trailer Winch Spring

Spiral helical torsion spring of 6.8 mm wire for constant force in boat trailer winches. Meets HTS 7320.20.50.45 helical wire spring criteria. Corrosion-resistant coating for marine environment.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.9%+17.5%21.4%
🇲🇽Mexico3.9%+10.0%13.9%
🇨🇦Canada3.9%+10.0%13.9%
🇩🇪Germany3.9%+10.0%13.9%
🇯🇵Japan3.9%+10.0%13.9%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8716.90.50Higher: 53.1% vs 21.4%

If parts of trailers

Trailer-specific springs classify under vehicle/trailer parts.

7320.90.50Higher: 37.9% vs 21.4%

If outside specified wire dimensions

Different wire sizes have separate helical spring provisions.

8431.10.00Higher: 35% vs 21.4%

If parts of winches/pulleys

Winch components including springs may classify under material handling machinery.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Salt spray testing (ASTM B117) certification for 1000+ hours required

Specify constant force vs. variable rate to confirm helical classification

Individual packaging prevents set classification with winch assembly

Related Products under HTS 7320.20.50.45

Heavy-Duty Compression Coil Spring for Truck Suspension

This helical spring is made from steel wire with a 7 mm diameter cross-section, designed to absorb shocks in heavy truck suspension systems. It falls under HTS 7320.20.50.45 as a helical spring of iron or steel wire measuring 5.1 mm to 12.7 mm in cross-section. Commonly used in automotive applications for durability under high loads.

Industrial Conveyor Belt Tension Spring

A large helical tension spring from 8 mm wire used to maintain tension in heavy industrial conveyor systems. Classified under HTS 7320.20.50.45 due to its helical construction and wire diameter between 5.1 mm and 12.7 mm. Essential for manufacturing and material handling equipment.

Garage Door Extension Helical Spring

High-tension helical spring made from 6.5 mm steel wire for counterbalancing residential garage doors. It meets HTS 7320.20.50.45 criteria as a helical spring of appropriate wire dimension per Chapter 73 wire notes. Safety cables often paired but classified separately.

Heavy Equipment Seat Suspension Spring

Compression helical spring of 9 mm wire diameter for vibration isolation in construction equipment operator seats. Falls under HTS 7320.20.50.45 as specified helical springs of iron/steel wire in the stated dimension range. Meets Chapter 73 definition of formed wire products.

Large Die Spring for Stamping Presses

Rectangular-section helical compression spring from 10 mm round wire equivalent for industrial metal stamping dies. Classified HTS 7320.20.50.45 for helical springs of qualifying wire dimension. Used in high-cycle progressive die applications.

Forklift Mast Extension Spring

Heavy-duty helical tension spring of 7.5 mm wire for forklift mast chain tensioning systems. Meets HTS 7320.20.50.45 specifications for helical wire springs in dimension range. Critical safety component in materials handling equipment.