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, 57mm ESP Mastcollar Block, 6050
Center pin dia. (in): 3/8Center pin dia. (mm): 10.00Sheave dia. (in): 3Sheave dia. (mm): 76Width (in..
$76.65
Harken, 57mm ESP Narrow Mastcollar Block (6mm pin), 6096
Breaking load (lb): 3300Breaking load (kg): 1500Sheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (i..
$77.90
Harken, 57mm ESP Narrow Mastcollar Block (8mm pin), 6097
Description: 57 mm narrow mastcollar blockSheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (in): 3 ..
$77.90
Harken, 57mm ESP Padeye Block, 6065
Width (in): 7/8Width (mm): 22Line (in): 3/4Line (mm): 19Max. wire dia. (in): -Max. wire dia. (mm): -..
$80.40
Harken, 57mm Triple Carbo Block w-Cam Cleat and Becket, 2618
Max. working load (lb): 1500*Max. working load (kg): 680*Breaking load (lb): 3750*Breaking load (kg)..
$257.95
Harken, 57mm Triple Carbo Block w-Cam Cleat, 2617
Description: Single/swivel/becket/150 Carbo-Cam*Sheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (i..
$251.95
Harken, 57mm Triple Carbo Ratchamatic w-Cam & Becket, 2630
Fits track: 2720, 373Description: Endstops small boat heavy duty (pair)Length (ft-in): -Length (m): ..
$347.95
Harken, 57mm Triple Carbo Ratchamatic w-Cam Cleat, 2629
Description: Single/150 Cam-Matic/becketSheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (in): 4 15..
$340.95
Harken, 57mm Triple Carbo Ratchamatic w-Cam, 2632
Sheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (in): 4 3/4Length (mm): 121Weight w/shackle (oz): ..
$412.95
Harken, 57mm Triple Carbo Ratchet w-Cam & Becket, 2141
Description: 57 mm Triple/Swivel/150 Cam-Matic?Sheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (in..
$284.95