Fortress Marine Anchors
Fortress Marine Anchors
For over 30 years, the lighter Fortress Marine Anchors has outperformed much heavier steel anchors in tests worldwide. In U.S. Navy tests, the Fortress not only beat heavier steel anchors but also withstood loads averaging over 200 times its own weight. They are made from a high-tensile, corrosion-resistant aluminum-magnesium alloy, making them lighter, easier to handle, and powerful in holding strength.
These anchors are also easy to take apart for compact storage, making them ideal as a spare or storm anchor. Each anchor is precision-machined for sharpness and fast penetration, ensuring quick setting in most sea beds.
Manufacturer Lifetime Warranty
The manufacturer provides a 100% hassle-free Lifetime Parts Replacement Warranty. If any part of the anchor gets damaged, it will be replaced for free—you only pay for shipping and handling. All parts are covered except for mud palms, which are available on our site at a low cost.
Fortress Anchor Assembly
Specifications
| Boat Length | ft | 16′-27′ | 28′-32′ | 33′-38′ | 39′-45′ | 46′-51′ | 52′-58′ | 59′-68′ | 69′-89′ | 90′-150′ |
| m | 5-8m | 8-10m | 10-12m | 12-14m | 14-15m | 16-18m | 18-21m | 21-27.1m | 27.4-46m | |
| Fortress Model | FX-7 | FX-11 | FX-16 | FX-23 | FX37 | FX-55 | FX-85 | FX-115 | FX-125 | |
| Weight | lb (kg) | 4 (1.8) | 7 (3.2) | 10 (4.5) | 15 (6.8) | 21 (9.5) | 32 (14.4) | 47 (21.2) | 60 (27.2) | 69 (31.1) |
| Replaces Steel Anchors | lb | 6-9 | 10-13 | 14-18 | 19-28 | 33-50 | 50-65 | 70-90 | 90-100 | 100-170 |
| kg | 3-4 | 5-6 | 6-8 | 9-13 | 15-23 | 23-29 | 32-41 | 42-44 | 45-77 | |
| HOLDING POWER | ||||||||||
| Working Load | lb | 700 | 900 | 1,250 | 2,000 | 3,000 | 4,000 | 5,250 | 6,000 | 6,750 |
| kg | 318 | 408 | 567 | 907 | 1,361 | 1,814 | 2,381 | 2,721 | 3,062 | |
| 32° Hard Sanding Holding | lb | 2,800 | 3,600 | 5,000 | 8,000 | 12,000 | 16,000 | 21,000 | 24,000 | 27,000 |
| kg | 1,270 | 1,633 | 2,268 | 3,629 | 5,443 | 7,258 | 9,526 | 10,886 | 12,247 | |
| 45° Soft Mud Holding | lb | 840 | 1,080 | 1,500 | 2,400 | 3,600 | 4,800 | 6,300 | 7,200 | 8,100 |
| kg | 381 | 490 | 680 | 1,089 | 1,633 | 2,177 | 2,858 | 3,265 | 3,674 | |
| 32° Soft Mud Holding | lb | 420 | 540 | 750 | 1,200 | 1,800 | 2,400 | 3,150 | 3,600 | 4,050 |
| kg | 191 | 245 | 340 | 544 | 816 | 1,089 | 1,429 | 1,633 | 1,837 | |
| DIMENSIONS | ||||||||||
| “A” Shank Length | in (mm) | 24″ (610) | 27″ (686) | 31″ (787) | 36″ (914) | 40″ (1,016) | 46″ (1,168) | 51″ (1,295) | 51″ (1295) | 56″ (1,422) |
| “B” Fluke Length | in (mm) | 14″ (356) | 16″ (406) | 18″ (457) | 21″ (533) | 24″ (610) | 27″ (686) | 30″ (762) | 33″ (838) | 33″ (838) |
| “C” Stock Length | in (mm) | 19″ (483) | 22″ (559) | 25″ (635) | 29″ (737) | 32″ (813) | 37″ (940) | 41″ (1,041) | 45″ (1,143) | 45″ (1,143) |
| SUPPORT HARDWARE | ||||||||||
| Proof Coil Chain | in (mm) | 3/16″ (5) | 1/4″ (6) | 5/16″ (8) | 3/8″ (9) | 3/8″ (9) | 1/2″ (13) | 1/2″ (13) | 1/2″ (13) | 1/2″ (13) |
| Nylon Rope ** | in (mm) | 3/8″ (9) | 3/8″ (9) | 1/2″ (13) | 5/8″ (16) | 3/4″ (19) | 7/8″ (22) | 1″ (25) | 1 1/4″ (32) | 1 1/4″ (32) |
| Shackle Size | in (mm) | 1/4″ (6) | 1/4″ (6) | 5/16″ (8) | 3/8″ (10) | 7/16″ (12) | 1/2″ (12) | 5/8″ (16) | 5/8″ (16) | 5/8″ (16) |
Product Overview
- Award Winning Design
- Highest rating in tests worldwide
- Hardened high-tech aluminum magnesium alloy
- Adjustable fluke angles: 32° for common bottoms, 45° for soft mud
- Easily disassembles for easy storage
- Easy to manage weight
- Tough anodized finish
- Made in USA 🇺🇸
