Harken 57mm High-Load Double Footblock
Harken's Black Magic Footblocks carry some of the highest loads imposed by running rigging. Use these Footblocks for genoas and spinnakers on big boats.
While some Footblocks have integral line lock offs, they are intended to hold lines temporarily and the lock offs should not be used in place of line stoppers or clutches. Footblocks are available in a wide range of sheave sizes for lines 7/16 in to 1 in in diameter. They feature strong and long-lasting Torlon roller bearings housed in a center cage with sculpted hardcoat-anodized aluminum sideplates to protect the sideload ball bearings.
Either metric or imperial flathead fasteners may be used for mounting and are not exposed.
|Breaking Load (lbs)||3300|
|Breaking Load (kg)||1500|
|Fasteners (in)||4 x 1/4|
|Fasteners (mm)||4 x 6|
|Max Line Size (in)||7/16|
|Max Line Size (mm)||12|
|Safe Working Load (lbs)||1650|
|Safe Working Load (kg)||750|
|Sheave Diameter (in)||2.25|
|Sheave Diameter (mm)||57|