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The Mantus M2 Anchor

The Future of Performance Anchoring

Mantus M2

Performance

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MANTUS M2 PERFORMANCE | DIGS LIKE NO OTHER  

The Mantus M2 is a boat anchor engineered to set on the first attempt, every time. It comes in thirteen sizes, from 8 lb to 175 lb, for boats under 12 feet up to 95 feet. Choose your size by boat length, boat weight, and the wind conditions you anchor in. Engineered in the USA, made in Texas.

M2 Mantus Performance Anchor significantly improved soft mud performance of the M2 line. The ears on the anchor act as foils to orient the anchor in the best angle of attack and almost double the anchors soft mud holding.

EASY TO STORE  On a bow roller anchor shank was modified to improve fit and stability. Whether you are a long range cruiser, racing or going out for a day sail. The Mantus anchor breaks down for easy storage, so you can store one or two as spares without taking up much needed boat space. A single bolt is used for the construction to facilitate easy disassembly and storage.

BUILT STRONG

  • Formed from high quality steel plate and high end precision casting.
  • ASTM certified bolts are oversized with a large margin to ensure safety.
  • Although the bolt used in the assembly is load bearing, only a fraction of the load is transmitted to the bolt.
  • Stainless Steel anchors feature a 2205 Duplex shank and 316L stainless steel fluke. The surface is hardened by shot-peening and then electro-polished to provide maximum corrosion resistance.
  • 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 equivalent).
  • Nose of the anchor is reinforced to guarantee a lifetime longevity.

FREQUENTLY ASKED QUESTIONS

DESIGNED FOR FIT Designed to fit boats with bow sprits and bow pulpits.

LIFETIME WARRANTY   See warranty section below for details.

After the release of the Mantus M2 Model we often get the question: which one is better?  Both Anchors have an amazing setting and resetting ability and both are excellent choices for a primary anchor, but each has its own small specific advantages.  Both anchors roll over well in most bottom conditions and it is rare for a properly weighted anchor to end up upside down, nevertheless  M1 Anchor due to its rollbar is better at rolling over in a really soft silty bottom. The M2 anchor is less likely to get plugged up with muddy weeds, and without the need for the roll bar M2 is less bulky. Thus the M2 model provides a better fit for boats with bow pulpits with slotted anchor housing and bow sprits.

DIMENSIONS AND FIT

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DIMENSIONS
(INCHES)		ABCDEFGHIJKLM
8 lbs19.09.92.83.36.65.86.012.41.00.419.011.710.2
13 lbs21.711.43.33.87.56.66.914.21.10.421.713.413.0
17 lbs24.112.63.64.28.37.37.615.81.30.524.114.915.8
25 lbs26.914.14.04.79.38.28.517.61.40.526.916.617.5
35 lbs29.615.54.45.210.29.09.419.41.60.629.618.318.9
45 lbs32.417.04.95.711.29.810.321.21.70.632.420.021.0
55 lbs34.818.25.26.112.010.611.022.81.80.734.821.523.6
65 lbs36.519.15.56.412.611.111.623.91.90.736.522.625.3
85 lbs40.321.16.07.013.912.212.826.42.10.840.324.926.9
105 lbs42.722.46.47.514.813.013.528.02.30.842.726.428.6
125 lbs46.524.47.08.116.114.114.730.42.50.946.528.831.0
155 lbs48.925.77.38.616.914.915.532.02.60.948.930.233.3
175 lbs51.727.17.89.017.915.716.433.82.71.051.731.935.0
DIMENSIONS
(MILLIMETERS)		ABCDEFGHIJKLM
3.6 kg4812527284166146152315259481298259
5.9 kg55128983961911681753612910551341330
7.7 kg613321921072121861944013212613379401
11.4 kg6833581021192362072164473613683422445
15.9 kg7533951131322602292384924014753465480
20.5 kg8234311231442842502615384315823509533
25.0 kg8844631331543062692805784717884546599
29.5 kg9284861391623212822946074917928573643
38.6 kg102453715417935431132467054191024633683
47.7 kg108556916319037533034471057201085671726
56.8 kg118261917720640935937477362221182730787
70.5 kg124365218621743037839481366231243768846
79.5 kg131368819722945439941685969251313811889
ANCHOR SIZING GUIDE
Anchor SizeDay Anchorrecommended for winds < 30 knotsCruising Anchorrecommended for winds < 50 knotsStorm Anchorrecommended for winds > 50 knots
8 lb16-20 feet < 3,000 lbs 12-14 feet < 1000 lbs0-12 feet < 800 lbs
13 lb20-25 feet < 5,000 lbs14-20 feet < 3000lbs 12-14 feet <1000 lbs
17 lb25-30 feet < 11,000 lbs20-25 feet < 5,000 lbs14 -20 feet < 3000 lbs
25 lb30-35 feet < 15,000 lbs25-30 feet < 11,000 lbs20-25 feet < 5000 lbs
35 lb35-39 feet < 20,000 lbs30-35 feet < 15,000 lbs25-30 feet < 11,000 lbs
45 lb39-43 feet < 30,000 lbs35-39 feet < 20,000 lbs30-35 feet < 15,000 lbs
55 lb43-45 feet < 40,000 lbs 39-43 feet < 30,00035-39 feet < 20,000 lbs
65 lb45-50 feet < 50,000 lbs43-45 feet < 40,000 lbs39-43 feet < 30,000 lbs
85 lb50-60 feet < 60,000 lbs45-50 feet < 50,000 lbs43-45 feet < 40,000 lbs
105 lb60-70 feet < 70,000 lbs50-60 feet < 60,000 lbs45-50 feet < 50,000 lbs
125 lb70-85 feet < 100,000 lbs60 -70 feet < 70,000 lbs50-60 feet < 60,000 lbs
155 lbs85-90 feet < 130,000 lbs70 - 85 feet < 100,000 lbs60-70 feet < 70,000 lbs
175 lb90 -95 feet < 140,000lbs85-90 feet < 130,000 lbs70-85 feet < 100,000 lbs
Anchor SizeDay Anchorrecommended for winds < 30 knotsCruising Anchorrecommended for winds < 50 knotsStorm Anchorrecommended for winds > 50 knots
8 lb/ 3.5 kg5-6 m < 1300 kg0 - 5 m < 460 kg0 - 3.6 m < 360 kg
13 lb/ 6 kg6-7.5 m < 2300 kg5-6 m < 1300 kg0 - 5 m < 460 kg
17 lbs/ 8 kg7.5 - 9m < 5000 kg6 - 7.5 m < 2300 kg5 - 6 m < 1300 kg
25 lb/ 11.4 kg9 - 10.6 m < 6,800 kg7.5 - 9 m < 5,000 kg6 - 7.5 m < 2300 kg
35 lb/ 15 kg10.6 -12 m < 9,090 kg9 - 10.6 m < 6,800 kg7.5 - 9 m < 5000 kg
45 lb/ 20 kg12 - 13 m < 13,600 kg10.6 - 12 m < 9,090 kg9 - 10.6 m < 6,800 kg
55 lb/ 25 kg13 - 13.5 m < 18,200 kg12 - 13 m < 13,600 kg10.6 - 12 m < 9,090 kg
65 lb/ 30 kg13.5-15.2 m < 23,000 kg13 - 13.5 m < 18,200 kg12 - 13 m < 13,600 kg
85 lb/ 39 kg15.2 -18.2 m < 27,000 kg13.5 - 15.2 m < 23,000 kg13 - 13.5 m < 18,200 kg
105 lb/ 48 kg18.2-21.2 m < 32,000 kg15.2 - 18.2 m < 27,000 kg13.5 - 15.2 m < 23,000 kg
125 lb/ 57 kg21.2 -25.8 m < 45,000 kg18.2 - 21.2 m < 32,000 kg15.2 - 18.2 m < 27,000 kg
155 lbs M225.8 - 27.3 m < 59,000 kg21.2 - 25.8 m < 45,000 kg18.2 - 21.2 m < 32,000 kg
175 lbs 27.3 - 28.8 m < 63,000 kg25.8 - 27.3 m < 59,000 kg21.2 - 25.8 m < 45,000 kg

What size Mantus M2 anchor do I need?

Match the M2 to your boat’s length and weight, then choose a column for your conditions. Most cruisers should size from the Cruising Anchor column.
The sizing guide gives three recommendations for every anchor, based on wind strength:
Day Anchor — for winds under 30 knots
Cruising Anchor — for winds under 50 knots (the right choice for most boats)
Storm Anchor — for winds over 50 knots
Here is the useful shortcut: for any given boat, step up one anchor size for each tier of worsening conditions. A boat that takes a 45 lb M2 as a day anchor takes a 55 lb as a cruising anchor, and a 65 lb as a storm anchor. Same boat, one size up per tier.

What size M2 anchor for a 40-foot boat?

A 40-foot boat under 30,000 lbs takes a 55 lb M2 as its main cruising anchor. Drop to a 45 lb model for day use in calm conditions. Move up to a 65 lb model to hold through a storm.

What size M2 anchor for a 30-foot boat?

A 30-foot boat under 15,000 lbs takes a 35 lb M2 as its cruising anchor. Use a 25 lb for day anchoring, and a 45 lb as a storm anchor.

What size M2 anchor for a 50-foot boat?

A 50-foot boat under 50,000 lbs takes an 85 lb M2 as its cruising anchor. Use a 65 lb for day use, and a 105 lb for storm holding.

Should I size up if I’m between sizes?

Yes. When your boat falls between two sizes, choose the larger anchor. A heavier anchor sets deeper and holds better, and the M2 stows and launches easily even at larger sizes.

ANCHOR SIZING GUIDE

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

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 (50 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 divided in three categories: Lunch Anchor category is recommended for lighter use, expected winds under 30 knots, working anchor for winds under 50 knots and finally, storm anchor recommendations are intended for winds above 50 knots. These recommendations are made assuming the worst case scenario, a poor holding bottom and thus may seem conservative but we believe are accurate.

OUR WARRANTY


The Full Warranty can be read here.

The short version: Mantus anchors are warrantied for the LIFETIME of the original purchaser. If an anchor becomes damaged we will ship a replacement part – shank, fluke or roll-bar. The galvanized coating on anchors is covered for 3 years from date of purchase.

CONSTRUCTION GUIDE

Fasteners 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, tighten the nut securely and pin the slotted nut

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

RETURN POLICY

Mantus Marine stands behind its products and wants you to be completely satisfied. If you find that a product does not meet your expectations, or does not work for your application, please contact us as soon as possible so we can work out a solution for you. Please keep all anchor boxes and original packaging until you are sure you want to keep the product. Shipping fees will be deducted from returns. We apologize, but used products cannot be returned. 

Customers that purchased via another sales channel, should contact the relevant store to initiate the return process.

RETURNS

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

More Mantus Products

Download the Mantus Catalog

Download the Mantus Catalog