Skip to content Skip to navigation menu

HARKEN
57mm Carbo Ratchamatic Single Block with Becket and Cam

$171.29

Model # 3771250 | Mfg # 2628
In stock online.
Control loaded lines with ease. 57mm Carbo Ratchamatic® Single Block with Becket and Cam is adjustable for use in many applications and weather conditions. This load-sensing ratchet block rolls freely in both directions under low loads, and then engages the ratchet automatically as loads increase. With 180-degree wrap, you get 10:1 holding power. Great for asymmetrical spinnakers when you need tough holding power and a quick release. Features Hardkote anodized eight-sided aluminum sheave, engineered plastic ball bearings in fitted ball races and long-glass reinforced engineered nylon cheek material.

57mm Carbo Ratchamatic Single Block with Becket and Cam

Becket Becket
Diameter 3/8 Inch or 10 mm
Direction Any
Integral Cleat Integral Cam
Mount Type Swivel Shackle
Ratchet Ratcheting
Safe Working Load 600 Pounds
Sheave Diameter 57 mm
Type Single

West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

REVIEW SNAPSHOT®

by PowerReviews
Harken57mm Carbo Ratchamatic Blocks
 
4.0

(based on 1 review)

Ratings Distribution

  • 5 Stars

     

    (0)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Reviewed by 1 customer

Displaying review 1

Back to top

 
4.0

Sheeting in used to be hard

By Coppertop

from Lake Arrowhead, CA

Verified Buyer

Comments about 57mm Carbo Ratchamatic Blocks:

I am a 46 female novice racing an MC Scow. This block has made sheeting in and holding my main so much easier! My arms used to ache after racing. Now I am able to now get my blocks to meet without straining. I only wish that the swivel lock would stay locked. I currently have it aft, with the mainsheet directed down to a lower block. Perhaps if I rotated the swivel, the main wouldn't contact it as much and inadvertently unlock it. None the less, I still wouldn't change it out...I love this ratchamatic!

  • Was this a gift?:
  • No

Displaying review 1

Back to top