SKU: 45531621261

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

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Description

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

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


Manufacturer : Attwood Marine
Manufacturer Part No : 66546-3
UPC : 022697665461
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 45531621261

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Ellen and Stephen
Natrona Heights, US
★★★★★ 5
Great Multi-Function Watch
Color: Gray/Digital/Gray
I absolutely love my Timex Ironman watches. I have had many over a very long period of time. Wonderful set of functions for the price. Very affordable. Easy to use. Lasts a long time. Very easy to read in standard lighting. I like the Indiglo when needed, but do not use it too often. Absolutely love the ability to set a repeat timer to remind me to do something at a fixed interval, or to keep me on task for a fixed period of time. Great to be able to set three independent alarms. Potential to capture a huge number of splits with the stopwatch. I purchased this watch to replace a similar model with a dead battery. I have replaced batteries in the past, but it is quicker and easier to buy a replacement watch. I am saving my old watches for that day in the future when the Ironman model may no longer be available. I expect this will be my watch of choice for the rest of my life.
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Reviewed in the United States on May 21, 2026
E
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E-Dub
Louisville, US
★★★★★ 5
Just fine if you have simple needs...
Color: Black/Digital/Black/Green
Exactly what I needed: a cheap, durable wrist watch. The only thing it was lacking were instructions, but about 5 minutes of messing with the buttons got it set up
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Reviewed in the United States on May 19, 2026
S
Verified Purchase
S S.
Boise, US
★★★★★ 5
Nice watch
Color: Black/Digital/Black/Green
Good watch
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Reviewed in the United States on April 30, 2026
J
Verified Purchase
Jeff
Lowell, US
★★★★★ 5
Solid watch!!
Color: Black/Digital/Black/Green
Great digital watch. Has many features. Built tough and looks great.
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Reviewed in the United States on April 12, 2026
J
Verified Purchase
Jason
Phoenix, US
★★★★★ 5
Classic simple digital watch
Color: Black/Digital/Black/Yellow
A classic watch with the clean classic look. A every day wear for the gym, while of course smart watches do it all, this keeps it simple with the basics. No distractions, just a watch that gets the job done. Clear screen and and the classic day glow work perfect. Simple black and yellow color combo is rad, and their come in a varitso you can find one that works for you.
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Reviewed in the United States on December 26, 2025

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