Finishing Washers

Finishing washers, also called countersunk or cup washers, provide a decorative, finished appearance under flat and oval head screws while distributing load and protecting the surface. Their cupped, countersunk shape cradles the screw head for a clean look. Common in cabinetry, marine trim, and visible assemblies, we stock finishing washers in steel, brass, and stainless.

Why Finishing Washers

Under a flat or oval head screw, a finishing washer dresses up the joint — the countersunk cup seats the screw head flush and centered, giving a professional, jewelry-like finish on visible hardware. It also spreads the screw's load and prevents the head from marring or sinking into softer surfaces like wood trim and upholstery panels.

Countersunk vs. Raised

Countersunk (flush) finishing washers suit flat head screws for a flush look. Raised (oval) finishing washers complement oval head screws, leaving a slight decorative dome. Match the washer's recess to the screw head shape for a proper seat.

Materials and Finishes

Steel (often chrome or nickel plated) for a bright finish, brass for decorative and marine trim, and 18-8 stainless for corrosion resistance and a clean look outdoors. Choose by appearance and environment, since these are visible by design.

Selecting the Right Finishing Washer

Match the washer's inside diameter and head recess to your screw size and head style (flat or oval). Choose the material/finish to match surrounding hardware and the environment. Use under exposed trim screws where appearance matters, and pair with the matching head style for a centered, finished result.

Use the filters to narrow by size, type, and material. Orders before 12 PM ET ship same day.