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

Upgrade your boat's integrity and aesthetics with our Stainless Steel Thru-Hull Standard Straight Barbed fittings. Engineered for longevity and performance, these fittings replace less durable plastic parts, ensuring they withstand the harsh marine environment for the life of your vessel.

Durable Stainless Steel Construction

• Crafted from certified Enhanced 316 Stainless Steel alloy, offering exceptional strength and lifetime corrosion resistance
• All visible surfaces are polished to a mirror finish and passivated for added protection against the elements
• Robust steel sidewalls are designed to endure continuous stress and frequent hose flexing

Easy and Efficient Installation

• Comes with a new silicone gasket for each Thru-Hull, ensuring a secure seal
• Integrated channel under the flange holds a bead of sealant, simplifying the application process for a reliable, leak-free installation
• Features wrench flats or an end notch on all models, providing a convenient gripping surface for tightening connections from inside the hull
• Barbed tail ends allow ample space to secure multiple clamps, enhancing the connection’s stability

Product Features

• Thread Model: Standard Thread with full-length threads for thick hulls and effortless tightening
• Barb Type: Straight Barbed design ensuring secure hose attachment

Specifications

Feature	Details
Hose Size	5/8" Inner Diameter
Flange Diameter	1-7/8"
Thread O.D. (Outside Diameter)	1"
Thread Length	2"
Barb Length	1-1/4"
Total Length	3-3/4"
Install Hole Saw Size	1-1/8"
Thread NPSM	3/4"
Max Hull Thickness	1-1/16"
Material	Stainless Steel
Box Dimensions	2"H x 3"W x 6"L
Weight	0.5 lbs
UPC	022697665461

Note: Stainless Steel Thru-Hull Connectors are designed for installation above the water line only.

Download the Quick Guide (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.