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    Technical Description

    Harken Shackles


    Harken, Inc. is a leading manufacturer and marketer of quality marine and sailboat hardware and accessories. Buy Harken hardware such as shackles, blocks, winches, mainsail & headsail systems, and a full range of hydraulic products and services for your boat.

    The Harken stainless steel shackles used on Harken® blocks are available separately. We have increased the range in both configurations and sizes.Harken Shackles

    Harken Bow Shackles
    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.

    Harken Captive Halyard Shackles
    The Harken Captive Halyard Shackles used on Harken blocks are available separately.The breaking strengths on the Harken Captive Halyard 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.

    Harken Forged D Shackles
    The Harken Forged D Stainless Steel shackles used on Harken blocks are available separately. The breaking strengths on the Harken Forged D Stainless Steel 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.

    Harken HR D Shackles
    The Harken HR D Stainless Steel shackles used on Harken blocks are available separately. The breaking strengths on the Harken HR D Stainless Steel 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. The high-resistance shackles are marked "HR."

    Harken Stamped Shackles
    The 072, 138, and 246 shackles are used on most of the Small Boat blocks. They are also useful for a wide range of other applications.

    Harken Snap Shackles
    The 111, 112, and 1584 snap shackles fit a wide variety of blocks and make them removable. Many use a snap shackle on the lower vang block so that it can be moved from the mastbase to the toerail to use it as a preventer.

    The breaking strengths on the Harken Stainless Steel 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.

    We at Mauri Pro Sailing are fully committed to be your Harken Shackles specialist not only providing the sailing community with a comprehensive and easy to use web site but with all the appropriate technical information that you might need to select your sailboat hardware and equipment. If you need any assistance selecting the appropriate Harken Shackles please contact us. Our crew is ready to help!

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