Harken 57mm SB Ratchamatic Flip Flop Block

aps price $192.99
Usually Ships in 4 Business Days

Harken's Flip-Flop Blocks with Ratchamatics enable sailors to hand-hold loaded lines and offer a balance between holding power and controlled adjustment.

These low-profile blocks are lightweight and can be used for halyard, mainsheet, and spinnaker sheet leads. The Small Boat Flip-Flop blocks pivot around the line axis to keep line close to the deck. Their hinged construction allows for a variety of lead angles. The sheave runs exclusively on a ball bearing system for fast trim and release under any load. Ratchamatic versions roll freely in both directions under low loads and automatically engage a ratchet mechanism as loads increase, giving sailors a holding power of up to 15:1. The ratchet engagement can be load adjusted to complement the sailor's strength, sailing style, and system usage.

More Information
Color Black
Breaking Load (lbs) 1000
Breaking Load (kg) 554
Height (in) 2-5/8
Height (mm) 67
Length (in) 4-5/16
Length (mm) 110
Max Line Size (in) 3/8
Max Line Size (mm) 10
Safe Working Load (lbs) 500
Safe Working Load (kg) 227
Sheave Diameter (in) 2.25
Sheave Diameter (mm) 57
Weight (oz) 5.5
Weight (g) 156
Width (in) 2
Width (mm) 50
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