Harken 40mm Carbo Single Ratchet Block with Swivel & Becket

Master your line control with the Harken 40mm Carbo Single Ratchet Block, engineered to provide an optimal balance of holding power and controlled easing for demanding sailing conditions. Proudly designed and manufactured by Harken Yacht Equipment in Pewaukee, WI, this block is a vital upgrade for main/jib/spinnaker sheets, traveler controls, and vangs on vessels from dinghies to large keelboats. Elevate your sailing performance and reduce fatigue—invest in Harken's renowned reliability today.

• Enhanced Line Management: Features a 40mm sheave diameter, ideal for lines up to 10mm (3/8 inch), allowing sailors to hand-hold loaded lines with superior control and reduced effort.
• High Strength-to-Weight Ratio: Constructed with nylon resin sideplates densely packed with long-glass fibers and machined hardcoat-anodized aluminum sheaves, ensuring compact durability and corrosion resistance.
• Versatile Ratchet Control: Equipped with a recessed on/off switch, enabling instant changes between ratchet mode for secure holding and free-running for quick easing in light air.
• Robust Load Capacity: Supports a maximum working load of 136 kg (300 lb) and a breaking load of 454 kg (1000 lb), providing confidence in challenging conditions.
• Integrated Rigging: Includes a stainless steel swivel shackle and becket for versatile and secure rigging configurations.
• UV-Stabilized Components: Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection against environmental degradation, ensuring long-term performance.
• Secure Line Grip: Eight precisely engineered facets on the sheave securely hold the line, further reducing fatigue and enhancing control during trimming.

Recommended Pairings: For an ultimate system, consider pairing with a boom-mounted Harken Ratchamatic® for double holding power in heavy air.