Harken Carbo Block Swivel 57mm

Harken has a worldwide reputation for producing high quality, functional blocks. The Harken Carbo range of blocks claim to be 60% stronger and 30% lighter than the classic Harken block.

The high load 57mm ball bearing block not only looks the part but has been designed with strength and longevity in mind. Nylon resin side plates use a system of densely packed long glass fibres to produce a high strength to weight ratio. The sheave spins on high-load ball bearings with fitted braces for low-friction use and the sideplates have been UV stabilised for added protection. Suitable for either main or jib sheets as well as various other control lines. 

• Swivel block
• Length 110mm
• Weight 87g
• Shackle pin diameter 5mm
• Maximum line diameter 10mm
• Maximum working load 359KG
• Breaking load 1079KG