Harken 57mm ESP Footblock w/Lockoff

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.

A (in) = 1/2
A (mm) = 13 
B (in) = 2.15625
B (mm) = 55 
C (in) = 2  
C (mm) = 51 
D (in) = 9/16 
D (mm) = 14 
E (in) = 2.25
E (mm) = 57 
F (in) = 3 25/32      
F (mm) = 96 
G (in) = -  
G (mm) = -  
Description = 57 mm Single with lockoff     
Sheave dia. (in) = 2.25
Sheave dia. (mm) = 57 
Length (in) = 3.875
Length (mm) = 99 
Weight (oz) = 8  
Weight (g) = 226
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) = 1200 
Max. lockoff load (kg) = 500
Fasteners (RH) (in) = 5/16 
Fasteners (RH) (mm) = 8  

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