Harken Stand-up Base for Midrange and ESP Blocks

Stand-up bases allow a wide variety of blocks to beheld upright, swivel freely, or pivot so lines have a fairlead under load. Use the 1634 stand-up base with Midrange blocksand 57 mm or 75 mm Cruising ESP blocks. Block headpost fits into socket without shackle.

Description = Midrange ESP stand-up   
Height (in) = 1 15/16      
Height (mm) = 49 
Weight (oz) = 9  
Weight (g) = 255
Base dia. (in) = 2.875
Base dia. (mm) = 73 
Inside socket dia. (in) = 9/16 
Inside socket dia. (mm) = 15 
Pin dia. (in) = 5/16 
Pin dia. (mm) = 8  
Max. working load (lb) = 3500 
Max. working load (kg) = 1588 
Breaking load (lb) = 7000 
Breaking load (kg) = 3175 
Use with = Midrange / Cruising ESP 

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