The stainless steel shackles we use on HarkenŽ blocks are available
separately. We have increased the range in both configurations and sizes.
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.
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 093 U-adaptor allows blocks with 3/8 in (10 mm) posts to be attached
to swivel bases or to other blocks with 3/8 in (10 mm) posts. The 1598
U-adaptor allows blocks with 9/16 in (14 mm) posts to be attached to
swivel bases or to other blocks with 9/16 in (14 mm) posts. The 463
U-Adaptor adapts 75 mm Carbo singles to swivel bases.