Perko 5/8" Thru-Hull Connection f/ use with Hose Chrome PlatedBronzeFlange is machined to fit and grooved to retain bedding compound neck isthreaded to approximately 3/16 inch from flange.Cast bronze, plain or chromed brassRegular or short length versionsRegular Length- Fits maximum hull thickness up to 2 inchesShort Length- For thin hull sections up to 5/8 inches maximumTechnical Information Regular Length - Chrome Plated Bronze:Hose Size Inches: 5/8Mounting Hole Diameter Inches: 13/16Maximum Hull Thickness Inches: 1-1/16O.D. Flange Inches: 1-1/2Model Number: 0350004DPCShip Weight: 1.9/3.3 lbs.Made in the USA