Halyard Shackle - Aluminum
Tylaska's halyard shackles have the highest strength-to-weight ratio of any existing halyard shackle on the market. A captive 17-4PH stainless pin makes for trouble-free operation. The all-metal machined line thimble allows for use as a 2:1 purchase without the wear or melting that occurs with plastic molded thimbles. Lines can also be permanently spliced for a fixed halyard.
Tylaska CNC machines the 3D shackles from a solid block of aluminum. Type III hard-coat anodizing protects against corrosion. Laser engraving identifies the product without sacrifice to strength or risk of corrosion. A new generation design of the H8 over Tylaska's original H8 halyard shackles further improves corrosion resistance and provides more thimble bearing area for 2:1 applications. The cross pin is made from 17-4PH to resist wear and bending. The pin is made captive to prevent loss but still allows the full throat width of the clevis. The size was made to fit standard sail headboards without adding any unnecessary weight. Strength was optimized by computer and then verified by numerous "make and break" destructive tests.