Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Turnbuckle
Origin	-
Material	316 Stainless Steel
Finish	Polished
Thread Type	Right Hand / Left Hand
Working Load Limit	2,200 lbs
Body Length	6.5 inches
Jaw Opening	0.75 inches
Pin Diameter	0.38 inches
Application	Marine Rigging, Sailboat Stays
Corrosion Resistance	High (Saltwater Safe)
Model Number	3818-HD

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Withstood a storm

Put these to the test during a recent gale. They held the rigging tight without any slipping or deformation. Peace of mind is priceless.

Anonymous

Mar 29, 2026

Rating: 4/5

Solid hardware, slightly heavy

Very sturdy turnbuckle. It is a bit heavier than my old aluminum ones, but the strength trade-off is worth it for offshore sailing.

Anonymous

Mar 16, 2026

Rating: 5/5

Great tension control

The spiral design makes adjusting tension incredibly easy even under load. Highly recommend for anyone doing serious marine work.

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect for my sailboat rigging

Installed these on my mainstay last weekend. The build quality is exceptional, and the threading is smooth. No signs of rust after a week in saltwater.

Anonymous

Mar 11, 2026

Rating: 3/5

Good but pricey

Works as described and seems very durable. Just wish the price point was a little lower for casual boaters like me.

Anonymous

Mar 09, 2026

Rating: 5/5

Professional grade quality

I use these for client boats regularly. The 316 stainless steel is genuine, and the welds on the eyes are clean and strong.

5 FAQ

Q: Does this come with the clevis pins included?

A: Yes, the unit comes fully assembled with the necessary clevis pins and cotter pins ready for installation.

Q: What is the maximum safe working load for model 3818?

A: The Working Load Limit (WLL) for this specific model is rated at 2,200 lbs. Please do not exceed this limit for safety.

Q: Can I use this for non-marine applications like construction cables?

A: While primarily designed for marine rigging, its heavy-duty construction allows for general industrial tensioning applications provided the load limits are respected.

Q: How often should I inspect this turnbuckle?

A: We recommend inspecting all marine rigging hardware before every trip and performing a detailed check at least once per season for wear or corrosion.

Q: Is this turnbuckle suitable for freshwater lakes or only saltwater?

A: This turnbuckle is made from 316 stainless steel, making it highly resistant to corrosion in both saltwater and freshwater environments.

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