Harken 6239 45mm Element Double Block Swivel Locking Shackle

The Harken 6239 is a 45mm Element double block featuring an innovative design that combines forged aluminum sideplates with compound curves for exceptional strength and a contemporary aesthetic. This robust sailing block pairs minimal metal construction with a proven journal bearing system to protect the sheave while maintaining optimal performance.

Key Features:

• 45mm (1 3/4") composite bearing sheave resists corrosion for long service life
• Hardcoat-anodized aluminum sideplates provide superior corrosion resistance
• Integrated swivel and locking shackle for secure attachment and versatile rigging
• Double sheave configuration for 2:1 mechanical advantage
• 6mm (1/4") shackle pin diameter
• Accommodates line up to 12mm (1/2") diameter
• Compact design: 127mm (5") length, 195g (6.8 oz) weight

Load Ratings:

• Maximum Working Load: 875 kg (1929 lbs)
• Breaking Load: 1750 kg (3858 lbs)

Ideal for sailboat control lines, halyards, and deck rigging applications where a reliable double block with swivel capability is required. The Element series represents Harken's commitment to engineering blocks that are both lightweight and incredibly durable for demanding marine environments.