Harken 57mm SS ESP Mastcollar Block

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.

Description = Mastcollar block 
Sheave dia. (in) = 2.25
Sheave dia. (mm) = 57 
Length (in) = 3 11/16      
Length (mm) = 93.5 
Weight (oz) = 7  
Weight (g) = 198
Clevis pin dia. (in) = 5/16 
Clevis pin dia. (mm) = 8  
Max. line dia. (in) = 5/8
Max. line dia. (mm) = 16 
Max. working load (lb) = 2205 
Max. working load (kg) = 1000 
Breaking load (lb) = 4409 
Breaking load (kg) = 2000 
Max. lockoff load (lb) = -  
Max. lockoff load (kg) = -  
Fasteners (RH) (in) = -  
Fasteners (RH) (mm) = -  

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