Harken 2648 40mm Carbo Triple Block - Swivel & Cam Cleat & Becket

Harken 40mm Triple Block — Swivel, Becket, Cam Cleat is a compact, high-performance solution designed for powerful trimming, secure line control and flexible rigging in demanding sailing systems. Combining a triple sheave block with an integrated cam cleat and becket, this setup delivers increased mechanical advantage with efficient load handling.

Part of the trusted Carbo Air range, this block offers smooth, low-friction performance with excellent strength in a lightweight design. The triple sheave configuration provides increased purchase for control systems requiring extra power, while the swivel head ensures optimal alignment under changing loads, reducing friction and improving efficiency.

The integrated cam cleat allows for quick adjustment and secure line locking, while the becket enables additional purchase configurations for more complex rigging setups. Ideal for mainsheets, vangs and advanced control systems on dinghies and smaller boats.

Specifications

Length: 110 mm / 4 5/16 in

Weight: 235 g / 8.3 oz

Sheave Diameter: 40 mm / 1 9/16 in

Maximum Line Diameter: 6 mm / 1/4 in

Maximum Working Load: 408 kg / 900 lb

Breaking Load: 816 kg / 1800 lb

Shackle Pin Diameter: 5 mm / 3/16 in

Key Features

• Triple sheave design for increased mechanical advantage
• Integrated cam cleat for quick, secure line holding
• Becket allows additional purchase and flexible rigging setups
• Low-friction Carbo Air construction for smooth, efficient performance
• Swivel head for optimal alignment under changing loads
• Lightweight yet strong construction for performance sailing
• Compact all-in-one design reduces the need for additional hardware
• High working load capacity for control systems
• Ideal for mainsheets, vangs and advanced trimming setups
• Suitable for dinghies and smaller sailing boats
• Reliable performance for racing and recreational use