HarkenHarken 57mm HL Footblock w/Lockoff
Product Description

Black Magic® footblocks carry some of the highest loads imposed by running rigging. The Torlon® rollers on these lightweight, free-running blocks are housed in a center cage, with no contact between bearings. UV-resistant, carbon-black Delrin® balls handle sideloads.

Either metric or imperial flathead fasteners may be used for mounting and are not exposed.

Use for:

Genoas and Spinnakers.

Part Number: 3221
**Replaces 1967

Imperial Metric
Sheave Dia. 2 1/4" 57 mm
Length 3 5/16" 84 mm
Height 1" 25 mm
Weight 5.44 oz 154 gr
Max Line Dia. 7/16" 12 mm
Maximum Working Load 2500 lbs 1134 kg
Breaking Load 5000 lbs 2268 kg
FH Fasteners 4 x 1/4 4 x 6 mm


Harken Blocks
A 9/32" 7 mm
B 7/8" 23 mm
C 2 1/32" 52 mm
D 5/8" 16 mm
E 2 9/32" 58 mm
F 3 5/16" 84 mm
G 15/32" 12 mm
Lockoffs are intended to hold lines temporarily and should not be used in place of line stoppers or clutches.
Harken 57mm HL Fuß Blöcke mit Lockoff
Harken 57mm HL Polea de Reenvío con Cierre
Harken 57mm HL Pied Poulie àLockoff
Harken 57mm HL Bozzelli per Rinvio di Coperta conLockoff
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    Code: HAR3221
    Original Price:$237.05
    Price: $208.60
    (You Save: $28.45)

    Quantity in Basket: None
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