Slotted Spring Lock Washer USS Size 1/2 from United States
A carbon steel washer with a slotted helical design for superior vibration resistance per USS standards, standard for HVAC and plumbing fixtures. This non-threaded spring lock washer provides reliable locking.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Ensure the washer meets USS standards and is made of carbon steel
• Provide the slotted helical design details on the commercial invoice
• Check if the product complies with Canadian plumbing codes for HVAC applications