Harken 57mm - Aluminum Mast Collar ESP Block - Part #6050

Harken 57mm - Aluminum Mast Collar ESP Block - Part #6050

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$59.99
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$59.99
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$67.65
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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.

Sheave Ø (mm)57 mm
Sheave Ø (in)2 1/4 in
Length (mm)93.5 mm
Length (in)3 11/16 in
Weight (g)122 g
Weight (oz)4.3 oz
Clevis pin Ø (mm)8 mm
Clevis pin Ø (in)5/16 in
Maximum line Ø (mm)16 mm
Maximum line Ø (in)5/8 in
Maximum working load (kg)850 kg
Maximum working load (lb)2100 lb
Breaking load (kg)1900 kg
Breaking load (lb)4190 lb