Harken 2636 40mm Carbo Air Single Block with Swivel Shackle

The Harken 40mm Carbo Air® Single Block with swivel shackle combines lightweight composite construction with exceptional strength for high-performance sailing applications. This award-winning block features a removable screw pin swivel shackle and delivers a superior strength-to-weight ratio that racers and cruisers depend on.

Award-Winning Design:

Winner of both the Dame Award and Sail Magazine's Freeman-Pittman Award for innovation, the Carbo AirBlock® line represents a breakthrough in fiber-reinforced composite block construction. These blocks are consistently 30% lighter and 60% stronger than equivalent conventional blocks, making them ideal for weight-conscious racing applications and reliable enough for cruising boats of all sizes.

Key Features:

• UV-stabilized, high-strength composite sideplates with exceptional durability
• Stainless steel swivel shackle with removable screw pin for easy attachment
• Low-friction sheave optimized for small-diameter control lines
• Compact design perfect for jib and mainsheet systems on dinghies and sportboats
• Suitable for high-load control lines on boats of all sizes
• 40mm (1 9/16") sheave diameter
• Maximum line diameter: 10mm (3/8")
• Maximum working load: 485 lbs (220 kg)
• Breaking load: 1,620 lbs (735 kg)
• Lightweight: only 1.6 oz (44 g)
• Overall length: 3 3/8" (86mm)

Designed as a companion to Harken's popular Black Magic block line, the Carbo Air blocks excel in applications requiring high working loads with minimal weight. The low-friction design ensures easy trimming and smooth line handling in all conditions.