Black Oxide Plain Washer 5/16 Inch from United States
A carbon steel plain washer with a black oxide finish, providing corrosion resistance and a sleek appearance for tools and general hardware applications. It is a non-threaded washer used to distribute load and prevent surface damage.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Classify the washer as a non-threaded steel washer under 7318.22.00
• Keep records of the black oxide treatment process to confirm it does not alter the washer's classification
• Check if the finish affects any anti-dumping or countervailing duties