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Harken 57mm Fiddle Block — Swivel, Cam Cleat is a compact, high-performance solution designed for efficient trimming and secure line control in demanding sailing systems. Featuring a fiddle configuration with two different sheave sizes, this block allows for versatile purchase setups while maintaining smooth, low-friction operation.
Part of the proven Carbo Air range, this block combines lightweight construction with impressive strength and reliability. The swivel head ensures optimal alignment under changing loads, reducing friction and improving efficiency, while the integrated cam cleat provides quick adjustment and secure line holding without additional hardware.
Ideal for mainsheet systems, vangs and control lines on dinghies and small keelboats, this fiddle block offers a flexible and efficient solution for performance sailing.
Specifications
Length: 153 mm / 6 in
Weight: 286 g / 10.1 oz
Sheave Diameter: 57 mm / 2 1/4 in
Maximum Line Diameter: 10 mm / 3/8 in
Maximum Working Load: 359 kg / 792 lb
Breaking Load: 1080 kg / 2380 lb
Shackle Pin Diameter: 5 mm / 3/16 in
Key Features
- Fiddle block design with two sheaves for versatile purchase systems
- Integrated cam cleat for quick, secure line holding
- Low-friction Carbo Air construction for smooth, efficient performance
- Swivel head for optimal alignment under load
- Lightweight yet strong construction for performance sailing
- Compact design reduces the need for additional hardware
- High working load capacity for safe trimming
- Ideal for mainsheets, vangs and control lines
- Suitable for dinghies and small keelboats
- Reliable performance for racing and cruising use
