The Mantus Anchor

DIGS LIKE NO OTHER The Mantus Anchor is designed to penetrate dense grassy bottoms and set with unparalleled holding power. When tested, our anchors set faster and deeper than any other tested anchor, including Rocna, Manson Supreme, Bulwagga, Fortress, Bruce, CQR and Danforth anchors.

EASY TO STORE The Mantus anchor lineup simply has the best boat anchors available. Whether you are a long range cruiser, racing or going out for a day sail. The Mantus breaks down for easy storage, so you can store one or two as spares without taking up much needed boat space.


  • Formed out of high quality steel plate. Contains no cast parts.
  • Shank and shank boot are welded from top and bottom.
  • Shank and roll bar are bolted to the fluke.
  • ASTM certified steel bolts are oversized with a large margin to ensure safety.
  • Although the shank is attached to the fluke with 4 bolts, a single bolt has sufficient strength to handle the maximum expected load on the anchor. Bolt Details.
  • Stainless Steel anchors are made of 316L Stainless and hand polished to a # 7 finish.
  • In the carbon steel version every part of the anchor system is hot-dipped galvanized for corrosion protection. (All shanks are HT ASTM 514 Steel and Flukes are mild steel A36 equivalen)
  • Sharp-headed nose is precision machined to achieve the perfect chisel shape to achieve maximum penetrating power.

LIFE TIME WARRANTY Mantus Anchors offers a lifetime warranty on its anchors *see Warranty section for details.

Machined chisel nose is optimized for best penetration

Shank/Fluke Bolted Joint: Four Grade-5 bolts, Each stronger than the appropriate size chain.

Ear tabs: increase the angle of attack, and thus pressure on the nose for better sea bed penetration.

Shank: Uses Hi Test Steel, Yield Strength 690 Mpa. Shank is inserted into the shank boot and then is welded from above and below.

Fluke: Concave shaped used for the fluke provides the maximum resistance to movement.

Retrieval Hole: Used to rig emergency retrieval line or tandem anchor set up.

Mantus Anchor Details

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Mantus Anchor Dimensions (inches)
8 lbs12.215.613196.87.9
13 lbs14.81915.9238.39.6
25 lbs17.722.71927.59.811.4
35 lbs19.725.321.1311112.5
45 lbs22.128.423.734.312.314.3
55 lbs23.630.425.436.713.215.3
65 lbs25.232.42739.11416.3
85 lbs26.734.428.741.514.917.3
105 lbs2937.2314516.118.7
125 lbs31.24033.448.417.420.2
175 lbs35.445.4437.9254.8819.6823
Mantus Anchor dimensions (mm)
3.6 kgs310396330482172200
5.9 kgs376483404584210244
11.4 kgs450577482698249290
15.9 kgs500642536787279318
20.5 kgs561721602871312363
25 kgs599772644932334388
29.5 kgs640823685993356414
38.6 kgs6788747291054378440
47.7 kgs7369457871143408474
56.8 kgs79210168481229441513
79.5 kgs89911549631393499584

When making sizing recommendations for a working anchor we are generally referring to the needs of a cruising boat spending most of its time on anchor, in doing so we try to envelope high sustained winds (40 kts) and assume poor holding conditions (low viscosity bottoms). Some may think these recommendations to be too conservative especially when compared to sizing tables from other manufacturers. Companies often make claims of superior anchor efficiency, stating that their small anchor X will outperform a much heavier anchor from their competitors and often use sizing charts as a marketing tool to that end, recommending anchors and anchor systems that are dangerously undersized for their intended use. Comparing surface area can be a good judge for potential holding capability. Our anchor sizing recommendations are presented in the table below and we divided in three categories: Lunch Anchor category is recommended for lighter use, expected winds under 25 knots, working anchor for winds under 40 knots and finally, storm anchor recommendations are intended for winds up to 60 knots. These recommendations are made assuming the worse case scenario, a poor holding bottom and thus may seem conservative but we believe are accurate.



Use the following guide to determine what size of anchor to use:




Mantus anchors provides a lifetime warranty on its products and parts against damage or manufacturing defects. LIFETIME. If at anytime you are dissatisfied with our product please contact us for a replacement or refund. If an anchor becomes damaged we will ship a replacement part – shank, fluke or roll-bar. (Only exception is the Bridle line which naturally degrades with age and normal use. Anything outside of normal wear-and-tear is fully covered by our warranty.)


Bolts, Washers and Nuts are provided with every Mantus Anchor. In the event of replacing a lost fastener, please make sure to always use proper size. Always use locking washers, or nylon lock nuts, and tighten the nut securely.

Click here to download a printable pdf of the assembly instructions.

Anchor Size
Bolt sizes
Number of Bolts
Mantus 8 lbs1/46 bolts, nuts, lock washers
Mantus 13 lbs3/86 bolts, nuts, lock washers
Mantus 25lbs3/86 bolts, nuts, lock washers
Mantus 35 lbs1/26 bolts, nuts, lock washers
Mantus 45 lbs1/26 bolts, nuts, lock washers
Mantus 55 lbs5/86 bolts, nuts, lock washers
Mantus 65 lbs5/86 bolts, nuts, lock washers
Mantus 85 lbs5/86 bolts, nuts, lock washers
Mantus 105 lbs3/46 bolts, nuts, lock washers
Mantus 125 lbs3/46 bolts, nuts, lock washers
Mantus 175 lbs3/46 bolts, nuts, lock washers


Mantus Anchors. The best anchor in the world. Period.

That is a pretty bold statement to make. We have tested Mantus against every other popular marine anchor on the market, and this is the conclusion we have arrived at. But don\’t take our word for it. Order a Mantus today and try for yourself. We offer a lifetime warranty. That\’s right. LIFETIME. Try our anchor or any of our products and if you aren\’t completely satisfied, simply contact us for a full refund! If at anytime the anchor becomes damaged, simply contact us and we will ship a replacement part.

WITHIN THE US: 1-855-262-6887
BEYOND THE US: 469-226-3468 / 469-878-4083

adobe-pdf-logoDownload the Mantus Catalog

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