Harken 29mm Fly™ Block hook Shackle Pin

Shackle Pin

and field testing

Also cleans nylon or dacron sails

Outboard end for 40 mm racing boom

The stainless steel spring prevents the nut from turning accidentally

Harken 29mm Fly™ Block hook Shackle PinHarken soft attach Fly blocks are designed to provide strength without mass, providing sailors with big power in a low aero package. Designed specifically for high tech line, these efficient blocks have an incredible working load for their small size. Fly blocks are perfect for use on foiling dinghies and sportboats and for vang cascades and backstay systems on Grand Prix racers. 29 mm blocks feature a one piece titanium outer race sheave, stainless