Harken HSB464 29mm Single Carbo Block - Removable Strap

Harken HSB464 29mm Single Carbo Block — Removable Strap is a compact, lightweight solution designed for versatile attachment to closed fixings on booms and masts. Featuring a removable strap, this block offers flexible rigging options while maintaining smooth, low-friction performance.

Part of the proven Carbo AirBlocks® range, this 29mm block delivers exceptional strength relative to its size. Its compact design makes it ideal for use as a mainsheet block on small dinghies such as the Optimist, as well as for low-friction control systems on a wide range of boats.

Engineered with fibre-reinforced sideplates and precision ball bearings, this block ensures efficient load handling and long-lasting durability. Lightweight and highly versatile, it is perfect for a variety of control line applications.

Specifications

Length: 49 mm

Weight: 23 g

Sheave Diameter: 29 mm

Maximum Line Diameter: 8 mm

Maximum Working Load: 150 kg

Breaking Load: 454 kg

Key Features

• Removable strap for easy attachment to closed fixings
• Compact and lightweight for performance sailing
• Low-friction Carbo AirBlocks® design for smooth operation
• Exceptional strength-to-weight ratio
• Fibre-reinforced sideplates for durability
• Ideal as a mainsheet block on small dinghies
• Suitable for control lines on boats of all sizes
• Perfect for outhauls, cunninghams and vangs
• Also suitable for traveller controls, barberhaulers and flag halyards
• Reliable performance for racing and recreational sailing