Halyard Shackle w/ Thimble - 3/8" - 1/2" Line, 0.315" Pin, 4,000 lb SWL

Tylaska Halyard Shackles have the highest strength-to-weight ratio of any existing halyard shackles. They are made of high strength aluminum with a captive stainless steel cross-pin.

These traditional halyard shackles have an integral thimble and are designed for splicing the mainsail halyard directly to the shackle.

Mainsail halyard shackles provide a strong, fast, reliable means of attaching and releasing the mainsail halyard to the head of the sail.
Adequate room for easy-fitting to the headboard and an easy-to-engage, smoothly functioning screw-pin are of paramount importance.
Headboard shackles also prevent the bitter end of a loose halyard from inadvertantly unreeving by running through the sheave box at the top of the mast.

The clevis slot length and width of Tylaska Halyard Shackles are carefully designed and machined to fit standard headboards without adding unnecessary mass or weight.
The super-strong 17-4PH headboard pin resists wear and deformation, and is captive to avoid loss while the shackle is being attached. The pin is initially loose-fitting for easy engagement, but the fit tightens and secures as it is screwed in. When the pin is disengaged, the unique recessed thread design allows for maximal throat width of the clevis for passing over the headboard grommet.

• Body machined from a solid block of aluminum
• Hard coat anodized for excellent corrosion resistance
• Every shackle is individually factory pull-tested