Specifications Item Type: Deck Plate Material: 316 Stainless Steel Surface Treatment: Mirror Polishing Outer Diameter: Approx. 197mm/7.8in Inner Diameter: Approx. 157mm/6in Outer Hole Center Distance: Approx. 92mm/3.6in Inner Hole Center Distance: Approx. 126mm/5.0in Aperture: Approx. 5.5mm/0.2in Package List 1 x Deck Plate