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Harken 57mm Flip-Flop Block

$179.10 $157.99
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Harken 57mm Flip-Flop Block

Harken small boat Flip-Flop blocks pivot around the line axis to keep line close to the deck. Hinged construction allows for various lead angles. 

Lightweight, machined 6061-T6 aluminum cheeks pivot on fiber-reinforced plastic chocks. Sheave runs exclusively on a ball bearing system for fast trim and release under any load. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection. 


  Imperial Metric
Sheave Diameter 2 1/4 in 57 mm
Max Line Diameter 3/8 in 10 mm
Max Working Load 500 lb 227 kg
Breaking Load 1,584 lb 719 kg
Weight 5.0 oz 141 g
Length 4 5/16 in 110 mm
Width 2 in 50 mm
Height 2 1/8 in 54 mm