Harken 2642 40mm Carbo Double Block - Fixed & Becket

Harken 40mm Double Block — Fixed Head, Becket is a compact, high-performance solution designed for efficient load handling and flexible rigging in fixed-position sailing systems. Part of the trusted Carbo Air range, this block delivers smooth, low-friction performance with excellent strength in a lightweight design.

The double sheave configuration provides increased mechanical advantage, making it ideal for control lines and purchase systems where additional power is required. The fixed head ensures stable, consistent alignment, while the integrated becket allows for additional purchase setups and versatile rigging options.

Built as a companion to Harken Big Boat blocks, the 40mm Carbo Air Double Block offers impressive working loads for its size. Suitable for dinghies, keelboats and small yachts, it provides reliable performance for both racing and cruising applications.

Specifications

Length: 106 mm / 4 3/16 in

Weight: 84 g / 2.9 oz

Sheave Diameter: 40 mm / 1 9/16 in

Maximum Line Diameter: 10 mm / 3/8 in

Maximum Working Load: 440 kg / 970 lb

Breaking Load: 1080 kg / 2380 lb

Shackle Pin Diameter: 5 mm / 3/16 in

Key Features

• Double sheave design for increased mechanical advantage
• Fixed head for stable, consistent alignment
• Integrated becket for additional purchase and flexible rigging setups
• Low-friction Carbo Air construction for smooth performance
• Lightweight yet strong for high-load applications
• Compact, durable design for demanding marine environments
• High working load capacity for safe trimming
• Ideal for control lines and purchase systems
• Suitable for dinghies, keelboats and small yachts
• Reliable performance for racing and cruising use