The entire line of Harken 57 mm Black Magic Airblocks has been redesigned with
a sleek new look. Their unique, performance-packaged engineering remains
exactly the same.
Used on offshore boats, these strong, lightweight locks feature Torlon roller
bearings for strength and reduced wear. Rollers are housed in a center cage and
stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum
sideplates protect sideload ball bearings. Dissimilar metals are isolated to
Low-load blocks use Torlon rollers and 316 stainless steel shackles. Standard
blocks have 17-APH stainless headposts.
Like all Harken 57 mm Black Magic AirBlocks, the three-way head
Blocks are easily disassembled with a single hex wrench.
The 3214 soft-attachment Loop block has a removable dead-end post for attachment
to a padeye. Lashings can also be used.
Harken 57 mm AirBlocks
We at Mauri Pro Sailing are fully committed to be your Harken 57 mm AirBlocks 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 57 mm AirBlocks
please contact us. Our crew is ready to help!