DIN 127 Helical Spring Lock Washer
A DIN 127 Type B helical spring lock washer made of medium carbon steel, conforming to European machinery standards. It offers consistent locking performance for fasteners under vibration. This non-threaded spring washer is classified under tariff item 7318.21.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the washer is not a spring or lock washer
This item covers other washers of iron or steel.
If the product is a similar non-threaded article
This item includes other non-threaded articles of iron or steel.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include the DIN standard reference on the product documentation to aid customs classification
• Verify if the medium carbon steel qualifies for preferential tariff treatment under trade agreements
• Ensure the washers are clearly marked with their metric size for accurate declaration
Related Products under Tariff item 7318.21.00
1/4 Inch Helical Spring Lock Washer
A 1/4 inch helical spring lock washer made from alloy steel, designed for use with SAE bolts in automotive applications. Its split helical design provides axial flexibility and locking tension to resist vibration-induced loosening. This non-threaded article is classified under tariff item 7318.21.00 as a spring washer of iron or steel.
1/4 Inch Zinc Plated Spring Lock Washer
A carbon steel split ring washer with zinc plating for corrosion resistance, providing axial flex to prevent fastener loosening under vibration. This non-threaded spring lock washer is designed for general bolting applications.
17-7PH Stainless Dome-Ended Lock Washer 1/2 Inch
A 1/2 inch precipitation-hardened stainless steel dome-ended lock washer for high-vibration locking applications, particularly in aerospace. The dome shape provides a spring action that maintains tension on the fastener. This non-threaded lock washer is classified under tariff item 7318.21.00 as an 'other' lock washer.
3/8 Inch Spring Lock Washer Pack
A pack of 100 3/8 inch helical spring lock washers made of carbon steel, intended for hardware retail. Each washer provides vibration resistance for general bolting applications. These non-threaded spring washers fall under tariff item 7318.21.00.
5/16 Inch Alloy Steel Helical Spring Lock Washer
A heavy-duty 5/16 inch alloy steel helical spring lock washer designed for high-vibration environments such as truck suspensions and engines. It provides superior locking through elastic deformation of the split ring. This non-threaded spring washer is classified under tariff item 7318.21.00.
A2-70 Stainless Finger Lock Washer #10
A #10 size washer with protruding finger tabs made of A2-70 stainless steel, designed to grip surfaces and lock fasteners. It is used in electrical panels and appliances. This non-threaded lock washer is classified under tariff item 7318.21.00 as an 'other' lock washer.