ITEM NAME:Marine Boat Screw Drain Plug For Garboard Drainage With Stainless Steel Plug Description: Made of Stainless Steel 316 ,Strong corrosion resistance,durable. Screw type drain plug bung, durable, strong and easy to use Flange diameter is 2inch, Plug diameter is 1/2inch BSPT, maintain sealing under high vibration.1 Piece Boat Garboard Drain Plug. Screw type drain plug bung, durable, strong and easy to use. The plugs prevent all water from intruding into the kayak and will keep you dry out on the water. Great accessories for boat transoms, ice chests, yacht and more.