ITEM NAME:Boat Garboard 7/8'' Screw Drain Bung Socket Marine Boat Transom Drain Plug Description: Screw type drain plug bung, durable, strong and easy to use 7/8" hole required for mounting Great accessories for boat transoms, wells, ice chests, yacht and more Professional marine grade cast solid 316 stainless steel Strong corrosion resistance and durable in saltwater circumstance High polished head side for mirror-like appearance and to match modern watercraft/boat/yacht Specification: Material: 316 stainless steel Color: Silver Total Height: Approx. 4.3 cm/1.69" Round Plate Outer Diameter: Approx. 5 cm/2" Screw Thread Outer Diameter: Approx. 2.2 cm/7/8" Screw Thread Inner Diameter: Approx. 1.6 cm/0.63" Screw Hole Diameter: Approx. 0.5 cm/0.2" Package Includes: 1 Piece Boat Drain Plug Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks! SKU: DMO0000353766001552.Screw type drain plug bung, durable, strong and easy to use. Great accessories for boat transoms, wells, ice chests, yacht and more. 1 Piece Boat Drain Plug. 2.2 cm/7/8". 1.6 cm/0.63". 0.5 cm/0.2". Professional marine grade cast solid 316 stainless steel.