Harken 57mm Quad Block Swivel with Center Becket - Lightweight and High-Load Marine Block

57mm Quad Block Swivel, Center Becket

Low-friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming.

Features:

• Sheave (mm) 57 mm
• Sheave (in) 2 1/4 in
• Maximum line (mm) 10 mm
• Maximum line (in) 7/16 in
• Maximum working load (kg) 1080 kg
• Maximum working load (lb) 2380 lb

The Harken 57mm Quad Block Swivel with Center Becket is designed for demanding sailing applications where strength and reliability are essential. Constructed with low-friction Carbo Air technology, this compact block offers an optimal balance of weight and durability, making it suitable for both racing and cruising vessels. Its high working load capacity ensures safe handling of lines up to 7/16 inches (10 mm), providing excellent performance during sail trimming and sheet management. The center becket allows for versatile rigging options, enhancing the block's adaptability to various sailing configurations. Whether upgrading your boat's hardware or installing new rigging components, this Harken block delivers professional-grade performance with ease of use. Its sturdy construction and smooth operation help reduce line wear and improve overall sailing efficiency, making it a reliable choice for serious sailors seeking quality and value. The compact size and lightweight design also make it easy to install and manage on a variety of boat sizes and setups.

Features:

• Sheave diameter: 57 mm (2 1/4 inches)

• Maximum line size: 7/16 inches (10 mm)

• Maximum working load: 2380 pounds (1080 kg)

• Constructed with low-friction Carbo Air material

• Includes center becket for versatile rigging