Harken 75mm Fixed Mastbase Block

Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.

Description = Fixed mastbase block**  
Sheave dia. (in) = 3  
Sheave dia. (mm) = 76 
Width (in) = 1.625
Width (mm) = 41 
Length (in) = 4.625
Length (mm) = 117
Height (in) = 3.75
Height (mm) = 95 
Max. line dia. (in) = 1/2
Max. line dia. (mm) = 12 
Weight (oz) = 11.5 
Weight (g) = 326
Max. working load (lb) = 5000 
Max. working load (kg) = 2273 
Breaking load (lb) = 10000
Breaking load (kg) = 4545 

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