Harken Bow Shackles


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Harken Bow Shackle

The Harken Forged Bow Shackles used on Harken® blocks are available separately. The number on the shackle denotes the screw diameter in millimeters.

The breaking strengths on the Harken Forged Bow Shackles are derived from tests that support 80% of the length of the screw pin that is unsupported, which is similar to the area of a post in a block. Safe working loads are no more than half the minimum breaking strength.