Attwood Marine Stainless Steel Thru-Hull Fitting, 5/8" Inner Diameter, Model 66546-3

Stainless Steel Thru-Hull Standard Straight Barbed - 5/8" Inner Diameter

Polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat

Rugged Stainless Construction:

• Cast from certified Enhanced 316 Stainless Steel alloy for strength and lifetime corrosion-resistance


• All visible areas are polished to a mirror finish, then passivate each part for additional protection


• Thick steel sidewalls withstand continual stress and hose flexing

Faster, Simpler Installation:

• Each Thru-Hull is available with a new silicone gasket


• A channel under the flange holds a bead of sealant, making it easier to apply a trouble-free seal


• All models have wrench flats or an end notch to hold as a gripping surface; one installer can tighten all connections from inside the hull


• The barbed tail ends provide plenty of room to hold multiple clamps

Stainless Steel Straight Thru-Hulls, Barbed

• Standard Thread model has a full-length thread for thick hulls and easy tightening

Specifications:

• Hose size: (inch) 5/8" inner diameter


• Flange Diameter: (inch) 1-7/8"


• Thread O.D. (outside diameter): (inch) 1"


• Thread Length: (inch) 2"


• Barb Length: (inch) 1-1/4"


• Total Length: (inch) 3-3/4"


• Install Hole Saw Size: (inch) 1-1/8"


• Thread NPSM: (inch) 3/4"


• Max Hull Thickness: (inch) 1-1/16"

*Stainless Steel Thru-Hull Connectors are designed for installation above the water line only

Enhance your boat's durability and performance with the Attwood Marine Stainless Steel Thru-Hull Standard Straight Barbed fitting. Crafted from certified Enhanced 316 stainless steel, this fitting offers exceptional strength and corrosion resistance, ensuring a long-lasting marine connection. The polished mirror finish on all visible surfaces combined with passivation provides additional protection against harsh marine environments, making it an ideal choice for demanding applications. Designed to withstand continual stress and hose flexing, the thick steel sidewalls deliver reliable performance over time. This thru-hull features a full-length 2-inch thread for secure attachment through thick hulls, with a 1-7/8-inch flange diameter and a 1-inch outside thread diameter. The barb length of 1-1/4 inches offers ample room for multiple clamps, ensuring a tight seal. Perfect for above-waterline installation, this fitting includes a silicone gasket for easy sealing and a channel beneath the flange to hold sealant, simplifying installation and preventing leaks. The wrench flats or end notch provide a gripping surface, allowing a single installer to tighten connections from inside the hull efficiently. Suitable for hulls up to 1-1/16 inches thick, the fitting requires a 1-1/8-inch install hole saw. This model is designed for reliable, corrosion-resistant performance and is a vital component for marine plumbing systems seeking durability and ease of installation.

Features:

• Polished mirror finish on all visible areas with passivation for added corrosion resistance

• Cast from certified Enhanced 316 stainless steel alloy for strength and durability

• Thick steel sidewalls designed to withstand continual stress and hose flexing

• Includes a silicone gasket for easier, sealant-free installation

• Channel under flange to hold sealant for a trouble-free seal

• Wrench flats or end notch for easy tightening from inside the hull

• Barbed tail ends allow for multiple clamps for a secure connection

• Full-length 2-inch thread for secure attachment through thick hulls

• Suitable for above-waterline installation, designed specifically for marine environments