Harken 2642 40mm Carbo Double Block - Fixed

Harken 40mm Double Block — Fixed Head is a compact, high-strength solution designed for efficient load handling in fixed-position sailing systems. Part of the trusted Carbo Air range, this block delivers smooth, low-friction performance with excellent durability 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 design ensures a stable, secure orientation, making it well-suited to applications where consistent alignment is needed.

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

Specifications

Length: 89 mm / 3 1/2 in

Weight: 80 g / 2.8 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
• 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