Harken 3226 57mm Black Magic Block with Swivel for Sail Controls

Harken 57mm Black Magic Block with Swivel

This lightweight and highly efficient 57mm Black Magic Block is specifically designed for big boat performance races and cruisers. Renowned for their free-running capabilities, these blocks excel in demanding sail controls including mainsheets, runners, halyards, and spinnakers. The innovative center cage design keeps Torlon® roller bearings in perfect alignment, minimizing friction during high-load scenarios. These shackle blocks can be secured in two directions or swivel to prevent line twisting, enhancing user convenience. Low-load variants come with red isolators and utilize durable Torlon® rollers combined with robust 316 stainless steel shackles for longevity. Standard blocks incorporate 17-4 PH stainless head posts for added strength.

Specifications:

• Sheave: 57mm / 2-1/4in
• Length: 119mm / 4-11/16in
• Weight: 154g / 5.44oz
• Shackle Pin: 6mm / 1/4in
• Maximum Line: 12mm / 7/16in
• Maximum Working Load: 7/16kg / 1655lbs
• Breaking Load: 1500kg / 3300lb