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57 mm Aluminum Double Block — Swivel 57 mm Aluminum Double Block — Swivel
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57 mm Aluminum Double Block — Swivel

Part No. 1960
$357.95$113.99  Limited Quantities In Stock
Sheave Ø (mm)57 mm
Sheave Ø (in)2 1/4 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in) 7/16 in
Maximum working load (kg)1633 kg
Maximum working load (lb)3600 lb

With high strength-to-weight ratios and free-rolling, high-load roller bearings, these versatile blocks are the workhorses of the Harken line.

Sheave Ø (mm)57 mm
Sheave Ø (in)2 1/4 in
Length (mm)132 mm
Length (in)5 3/16 in
Weight (g)286 g
Weight (oz)10.1 oz
Shackle pin Ø (mm)8 mm
Shackle pin Ø (in)5/16 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in) 7/16 in
Maximum working load (kg)1633 kg
Maximum working load (lb)3600 lb
Breaking load (kg)3267 kg
Breaking load (lb)7200 lb
DWG: 1960.dwg (open/save)
DXF: 1960.dxf (open/save)
IGS: 1960.igs (open/save)
EPS: 1960.eps (open/save)
High-res JPG: 1960.jpg (open/save)

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

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