Harken 2608 40mm Carbo Ratchet Block with Swivel

The Harken 2608 40mm Carbo Ratchet Block is a lightweight, high-performance sailing block designed to let sailors hand-hold loaded lines with superior control. Part of Harken's Carbo Air Block series, it delivers an optimal balance between holding power and controlled easing — making it a go-to choice for jib sheets, spinnaker sheets, and control lines on high-performance dinghies and small keelboats.

Compared to Harken's classic blocks, the Carbo series is 30% lighter and offers a 60% higher working load, all in a compact, durable package built to handle the demands of competitive sailing.

Key Features:

• On/Off Ratchet Switch — quickly engage or disengage the ratchet mechanism as conditions change
• Swivel Shackle — patented switch locks shackle in front or side positions, or allows free swivel to prevent line twist
• 40mm Machined Aluminum Sheave — Hard Lube-anodized for strength and long-term corrosion resistance
• Eight-Facet Ratchet Design — grips line securely under load for confident hand-holding
• Long-Glass Fiber Nylon Resin Sideplates — high strength-to-weight ratio in a compact form factor
• UV-Stabilized Components — ball bearings, sheave, and sideplates treated with carbon black for maximum UV protection
• Maximum Working Load: 300 lb (136 kg)
• Maximum Line Diameter: 3/8 in (10 mm)
• Sheave Diameter: 1-9/16 in (40 mm)

Ideal for jib sheets and spinnaker applications on small dinghies where minimizing size and weight is critical, the Harken 2608 is a trusted component in competitive racing and recreational sailing rigs worldwide.