A traditional and commonly used washer for clamping and spacing applications. Plated in Trivalent Chromium (Cr3) Zinc"Hole Dia. mm - M6Outer Dia. mm - N/AThickness mm - 1.6Material - Carbon Steel Timco Form A Washers - Zinc (Size M6 - 500 Pieces) in Grey Size: 1000mm x 1000mm