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Harken
Harken 57 mm Single Block w/ Lockoff
    Code: HAR6077
    Original Price: $147.00
    Price: $129.36
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    Product Description

    Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. Available in aluminum or hand-polished stainless steel.

    Use footblocks to redirect lines on the deck. Footblocks with lockoffs temporarily secure sheets and are designed for port or starboard installation by flipping them over.

    Part Number: 6077


    Specifications
    Imperial Metric
    Sheave Dia. 2 1/4" 57 mm
    Length 3 7/8" 99 mm
    Weight 8 oz 226 gr
    Max Line Dia. 5/8" 16 mm
    Maximum Working Load 2500 lbs 1135 kg
    Breaking Load 5000 lbs 2272 kg
    Max Lockoff Load 1200 lbs 550 kg
    FH Fasteners 5/16" 8 mm

    Dimensions

    Imperial
    Metric
    Harken Blocks
    A 1/2" 13 mm
    B 2 5/32" 55 mm
    C 2" 51 mm
    D 9/16" 14 mm
    E 2 1/4" 57 mm
    F 3 25/32" 96 mm
         
     

    Lockoffs are intended to hold lines temporarily and should not be used in place of line stoppers or clutches.
    If double stacked, upper block is two-thirds of listed MWL and breaking load.
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