Frequently Asked Questions

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What are Fortress and Guardian Anchors made from?

Fortress and Guardian Anchors are made from hardened high-tech aluminum magnesium alloy. Fortress Anchors are also anodized for a handsome and durable finish.

What is the difference between a Fortress Anchor and a Guardian Anchor?

Fortress Anchors are anodized, which means that the product received a chemically bonded coating. This process gives the Fortress Anchors greater corrosion resistance, and a more appealing appearance. Our other model, the Guardian Anchor, is not anodized, yet the strength is maintained.

Fortress Anchors’ shanks and flukes have a precision-machined finish, making them sharper and better, allowing the product to penetrate the sea bottom deeper, and thus provide more holding power. This model have two adjustable angles: 32° and 45° for Soft Mud Holding, and 32° for Hard Sand Holding, while Guardian Anchors adjust only to a 32° angle. In addition, Fortress Anchors have 100% Hassle Free Lifetime Parts Replacement Warranty, while Guardian Anchors have a One Year Parts Replacement Warranty.

What if I damage a part of my anchor?

You can fill out our Online Replacement Parts Order Form, or you can call us to request a new part. The Fortress Anchor model offers a 100% Hassle Lifetime Parts Replacement Warranty. The Guardian Anchor model offers a One-Year Parts Replacement Warranty. The only cost to you is a small shipping and handling charge.

How much chain should I use?

We recommend using 6 ft (2m) of chain for every 25 ft (8m) of water depth. Coastal anchoring is often used in under 50 ft (16m) of water depth, so vessel owners commonly use 10-15 feet (3-5m) of chain with their Fortress Anchors.

Why should I use Fortress Marine Anchors’ Mud Palms?

From our customers experience, and our anchor test we have found that ‘Mud Palms’ help the anchor set faster in any sea bottom. We advice to install the ‘Mud Palms’ on the anchor and leave them on.

If I would like to mount my anchor on the bow, the rail, or on the deck, what parts are required?

Please see the links below for different anchor mounting hardware:

Deck Chocks

Rail Mounts & Bow Rollers

My anchor does not fit into the small anchor locker of my boat. Can I cut the stock to make the anchor fit?

We do not recommend altering none of the anchor’s part. The stock is the perpendicular piece of the anchor, and it functions as the “landing gear” for it. The stock helps to balance the anchor once it reaches the sea bottom, and then the flukes fall forward and the anchor begins to dig in and set.

How can I change the angle of my Fortress Anchor from 32° to 45°?

Click here to visit our angle adjusting page and learn how to change the angle of the anchors’ flukes.

Where can I locate Fortress Marine Anchors’ trusted suppliers?

Our supplier are located throughout the U.S. and in other countries. For a complete listing, click here.

What is your contact information at the Headquarter?

Our location is:

Fortress Marine Anchors
1386 West McNab Road
Fort Lauderdale, Florida 33309

Phone Number: (954)-978-9988 or 800-825-6289 (U.S. Only)

Fax Number: (954)-974-5378.

We can be reached via email at, or use our contact form.

For all tech questions please email and a Fortress Marine Anchors representative will respond in 24-48 hours.