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Mark II Anchor
Mark II Anchor
Mark II Anchor Mark II Anchor

Mark II Anchor

Catalogue Code: 841339
£454.95 Out Of Stock
Save £48.51 RRP £503.46
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Rocna Mark II Anchor


An idealized form of the Rocna design, the Rocna Mk Il is based on the same proven design pattern as the original, but refines every element close to perfection.

The Rocna has established the highest performance and consistency of behavior when put to the test both by a worldwide array of boaters and in numerous independent tests. This performance is the result of careful design and engineering by Rocna designer Peter Smith, and it is all completely retained and tuned in the new Rocna Mk II.


Rocna anchors set fast and hold in all conditions, so you and your family or crew don’t have to be on constant tenterhooks. For the safety of your vessel, and everyone aboard, invest in the best anchor available. The anchor made by those who understand that when the storm hits, you need a rock solid anchor.


  • HIGH QUALITY BUILD AND FINISH Compare welds and finish on a Rocna anchor to other alternatives. A top performing product should be built like one, so the Rocna is manufactured with the highest standards of production and quality control to ensure a superior finished anchor.
  • GUARANTEED FOR LIFE Each anchor comes with a Lifetime Warranty against manufacturing defects plus both breakage and bending.
  • WIDE COMPETITIVELY PRICED PRODUCT RANGE Available initially in sizes from 4 kg (9 lb) to 100 kg (220 lb) to suit small boats all the way to large yachts. Larger sizes coming soon.
  • PRECISION SETTING: the roll-foil™ (A) ensures the anchor always arrives at the ideal angle for penetration, and helps the skids guide the fluke tip which chisels into the seabed for an instant reliable burial.
  • ROCK SOLID HOLDING POWER: A concave fluke (C) gives the greatest resistance. In soft seabeds, this provides the secure holding power you need. On hard or weedy sea floors, the weighted chisel tip (B) cuts through and bites deep.

  • ROLL-FOIL™: Sculpted from the Rocna roll-bar, the patented roll-foil™ (A) providing even surer self-righting for the most dependable set. The roll-foil’s sections vary in profile, each designed for its own dynamic role: to provide extra assistance if the anchor lands upside-down, to help during setting for deeper penetration and greater holding once buried (1), and to improve soil flow for reduced clogging.

  • FLUKE The Rocna fluke (C) has been redesigned and optimized for weight distribution, penetration, and strength. It enjoys a new weighted and reinforced tip (B). Steel moved (2) from where it is extraneous, to where it aids. The tried-and-true Rocna fluke is increased in surface area (3), for a substantial boost in holding power. And all attained with no trade-offs.


The below dimensional drawing provides a good guide to the fit of the Rocna Mk.2. For more precise fitment, you can download one of the full sized PDF files below. These can be printed at full size on a few sheets of A4 paper, laid onto a piuece of scrap cardboard and cut out to give a life size side profile of the anchor. 


The size guide below will help identify the correct anchor for your vessel. Remember the below is based on an anchor suitable for use in up to 50kts of wind, so for most people you won't need to 'go up a size', but it's also only a guide, so feel free to interpret it as you see fit. As a general rule we recommend that perhaps multihul vessels, large flybridge boats and those who may encounter extreme weather should consider increasing the anchor size slightly, or if they are between two sizes, picking the larger. 


Download the PDF drawing here: 4kg/9lb | 6kg/13lb | 9kg/20lb | 12kg/26lb | 15kg/33lb | 20kg/44lb | 25kg/55lb | 33kg/73lb | 40kg/80lb | 50kg/110lb | 60kg/132lb | 80kg/176lb | 100kg/220lb





Stock Availability

Stock can move quickly, so this is just a suggestion of current levels, please phone the shop to confirm.

The ship to store service is based on Head Office sending stock to a branch.

If you wish to call & collect stock, please do so over the phone using the number provided.

This item is currently not available to purchase.

Delivery & Returns

Royal Mail Service Update: Please be aware when choosing Royal Mail as your preferred delivery method, your delivery time may be impacted by ongoing strikes and may take up to 20 working days. If your order is time critical we suggest choosing a courier or Next Day Service


Our Mail Order team ship chandlery, yacht parts and sailing clothing around the world. We use the best value couriers available, and we will endeavour to get your products to you as quickly and as cost effectively as possible.

International Orders: Due to delays we have had to suspend our international delivery options. 

UK Standard Delivery

  • UK Mainland 0 - 2Kg (small jiffy) £3.95 Royal Mail Service. Despatch within 3- 5 working days, delivery in 7-10 working days for orders under £50.00
  • UK Mainland up to 25Kg £5.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days
  • UK Mainland 25Kg+ Price on request
  • UK Mainland Next Day 0 - 25Kg £9.95 Courier service with signature, orders must be placed before midday
  • Northern Ireland, Highlands & Islands 0 - 2Kg (small jiffy) £3.95 Royal Mail Service. Despatch within 3- 5 working days, delivery in 5-7 working days for orders under £50.00
  • Northern Ireland, Highlands & Islands 1 - 25Kg £10.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days
  • Northern Ireland, Highlands & Islands 25Kg+ Price on request
  • Channel Islands 0 - 2Kg (small jiffy) £5.95 Royal Mail Service Despatch within 3- 5 working days, delivery in 5-7 working days for orders under £50.00
  • Channel Islands 1 - 25Kg £13.50 Courier service with signature. Despatch within 3- 5 working days, delivery in 5-7 working days
  • Channel Islands 25Kg+ Price on request

UK Exceptional Delivery

  • UK Mainland; Antifoul & paints £5.95
  • UK Mainland; Inflatable dinghy £10.00
  • UK Mainland; Liferafts £17.50
  • UK Mainland; Flares £49.95
  • Northern Ireland, Highlands & Islands; Antifoul & paints £9.95
  • Northern Ireland, Highlands & Islands; Inflatable dinghy price on request
  • Northern Ireland, Highlands & Islands; Liferafts price on request
  • Northern Ireland, Highlands & Islands; Flares not available to ship at this time
  • Channel Islands; Antifoul & paints £13.50
  • Channel Islands; Inflatable dinghy price on request Channel Islands; Flares not available to ship at this time

For further delivery information click here.


Standard Returns

If you are not entirely happy with your purchase, we will exchange or refund your goods in full, provided that the items are returned within 14 days of receipt.*

Please check the condition of goods on arrival - we are unable to accept goods damaged during shipping after 14 days.

Returned goods must be packaged securely, with all original packaging undamaged and in a saleable condition i.e. shoe boxes must be in the same condition as when received.

Goods must be unused and security seals intact.*

If you would like to return goods because they were ordered incorrectly or if clothing does not fit, return postage will be at your expense. If you would like us to replace the goods with another size or colour, we will charge carriage on the replacement.

Please be aware that some navigational and safety products may be dated, and as such a full refund may in some cases not be possible. If you are purchasing dated navigational charts we suggest you contact us for more information.

Faulty Goods

If you receive your goods and believe them to be faulty, please contact us straight away with a brief description of the problem. If we require you to return the product for a replacement, we will send you a pre-paid Royal Mail label for delivery back to us. Unfortuantely we cannot send the courier back to collect the items.

Returning goods to Force 4 is easy!

  1. Please contact us by ringing 0345 1300 710 or email on [email protected]. This way we'll be able to determine whether you would like to return the product for a refund or whether you'd like to exchange the product. We are unable to process the return of faulty goods that we're not expecting.
  2. We'll then give you a returns number. This returns number will need to be clearly marked on the outside of your parcel so it can be identified on arrival. Please note, failure to mark a returns reference number on the outside of your parcel may result in a delay in processing your return.
  3. Don't forget your proof of postage, just in case!
  4. Once we receive the item we'll be able to proceed with a refund or an exchange.

*this excludes faulty goods with manufacturers defects. If goods are found to be faulty during use, after the returns period, please just give us a ring on 0345 1300 710 and we'll be happy to help.


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Men's Size Guide

  To Fit Height To Fit Chest
X SMALL 5'2" - 5'4" 34 - 36"
SMALL 5'5" - 5'7" 36 - 38"
MEDIUM 5'7" - 5'10" 38 - 40"
LARGE 5'11" - 6'1" 41 - 43"
X LARGE 6'1" - 6'3" 44 - 46"
XX LARGE 6'3" - 6'5" 46 - 48"


Shoe Sizes

3.5 36   5.5
4 37   6
4.5 37.5   6.5
5 38 5.5 7
5.5 38.5 6 7.5
6 39.5 6.5 8
6.5 40 7 8.5
7 40.5 7.5 9
7.5 41.5 8 9.5
8 42 8.5 10
8.5 42.5 9  
9 43 9.5  
9.5 44 10  
10 44.5 10.5  
10.5 45 11  
11 45.5 11.5  
11.5 46.5 12  
12 47 12.5  
12.5 47.5 13  
13 48 13.5  
14 50 14.5  
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