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57 mm Aluminum Stand-up Block 57 mm Aluminum Stand-up Block
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57 mm Black Magic

57 mm Aluminum Stand-up Block

Part No. 1965
$309.05$113.32  Limited Quantities In Stock
Sheave Ø (mm)57 mm
Maximum line Ø (mm)12 mm
Maximum line Ø (in)7/16 in
Maximum working load (kg)1134 kg
Maximum working load (lb)2500 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
Length (mm)114 mm
Length (in)4 1/2 in
Weight (g)210 g
Weight (oz)7.4 oz
Maximum line Ø (mm)12 mm
Maximum line Ø (in)7/16 in
Maximum working load (kg)1134 kg
Maximum working load (lb)2500 lb
Breaking load (kg)2268 kg
Breaking load (lb)5000 lb
Fasteners (mm)6 mm
Fasteners (in)1/4 in
Fastener circle (mm)37 mm
Fastener circle (in)1 15/32 in
A (mm)57 mm
A (in)2 7/32 in
B (mm)56 mm
B (in)2 3/16 in
C (mm)32 mm
C (in)1 1/4 in
DWG: 1965.dwg (open/save)
DXF: 1965.dxf (open/save)
IGS: 1965.igs (open/save)
EPS: 1965.eps (open/save)
High-res JPG: 1965.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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