Blocks
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Harken blocks have become widely accepted as the industry standard for ball bearing blocks. We, at Discount Marine Source, are you complete source for all Harken Blocks. From the smallest control line block on a dinghy, to large Big Boat Blocks. |
Ball Bearing Blocks |

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Harken, 29mm Triple Carbo Block w-Cam Cleat & Becket, 347
Description: triple / camSheave dia. (in): 1 1/8Sheave dia. (mm): 29Length (in): 2 7/8Length (mm): 7..
$125.95
Harken, 29mm Triple Carbo Block w-Cam Cleat, 346
Description: Triple / swivel / becketSheave dia. (in): 1 1/8Sheave dia. (mm): 29Length (in): 3 3/8Le..
$120.95
Harken, 3.00 Heavy Duty Cruiser Block w-Becket, 012
Description: Heavy duty singleSheave dia. (in): 3Sheave dia. (mm): 76Length (in): 5 1/4Length (mm): ..
$131.30
Harken, 3.00 Heavy Duty Cruiser Block, 011
Description: Ball/socket*Height (in): 1 3/4Height (mm): 44Weight (oz): 3Weight (g): 85Base dia. (in)..
$109.70
Harken, 3.00 Hexa-Cat Base w-Adjustable Cam Cleat, 170
Description: Single/swivel/becketSheave dia. (in): 1 1/2Sheave dia. (mm): 38Length (in): 4Length (mm..
$322.95
Harken, 3.00 Hexaratchet II + 2 Block - Port, 044
Description: SingleSheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (in): 4 1/4Length (mm): 108Weig..
$127.60
Harken, 3.00 Hexaratchet II + 2 Cheek Block (Port) w-Fasteners, 016
Description: Cheek (stbd)+Sheave dia. (in): 3Sheave dia. (mm): 76Length (in): 4Length (mm): 102Weigh..
$121.80
Harken, 3.00 Midrange Cheek Block, 1548
Description: TripleSheave dia. (in): 3Sheave dia. (mm): 76Length (in): 7 3/4Length (mm): 197Weight (..
$106.95
Harken, 3.00 Midrange Double Block, 1544
Description: Single/aluminum sheaveSheave dia. (in): 3Sheave dia. (mm): 76Length (in): 6 1/8Length (..
$274.95