A large outer-diameter flat washer relative to its bore spreads load across thin sheet, oversized holes, and soft substrates — sheet metal, fiberglass, and panel fixing.
Conforms to

Oversized outer diameter spans thin or slotted material.
A cross-section of stocked configurations. Not exhaustive — diameters, lengths, grades, and finishes extend across the full range on request.
Representative specifications — not exhaustive · NXB-FDW
Match the line to the load, the environment, and the standard it answers to.
Materials
Finishes
Standards
Typical applications
Served industries
Mating parts and adjacent lines engineers reach for alongside this one.
Spreads clamp load and protects the bearing surface.
M3–M36 · #6–1-1/2"
Bonded elastomer seal keeps weather and fluid out.
M5–M16 · #10–1/2"
Wave or curved form maintains preload through movement.
M3–M24 · #6–1"
Domed head over a square neck that locks into timber and channel.
M6–M20 · 1/4"–3/4"
Grade, material, finish, and standard — matched to your joint and quoted from stock. Tell us the load case and we’ll confirm the line.