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Harken 75mm Ratchamatic Flip-Flop Block

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Harken 75mm Ratchamatic Flip-Flop Block
SKU #: HK_HAR2688

Regular Price: $266.65

Special Price $234.99

Availability: In stock

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. 

The Harken Ratchamatic version rolls freely in both directions under low loads and automatically engages a ratchet mechanism as loads increase, giving sailors a holding power of up to 15:1. The ratchet engagement can be adjusted to a higher or lower load depending on the sailor’s strength, sailing style and system usage. 




  Imperial Metric
Sheave Diameter 3 in 75 mm
Max Line Diameter 7/16 in 12 mm
Max Working Load 750 lb 340 kg
Breaking Load 1,500 lb 681 kg
Weight 11 oz 304 g
Length 5 5/8 in 143 mm
Width 2 1/2 in 64 mm
Height 3 1/2 in 89 mm
Additional Information

Additional Information

Brand Harken
Gender No
Location No
Activity No
Material No
Max Working Load 750lb / 340kg
Max Line Diam 12 mm (7/16")
Length No