Harken 25 mm Low-Load Ball-and-Socket Stand-Up Base — Swivel

Stand-up bases allow a wide variety of blocks to be held upright, swivel freely, or pivot so lines have a fairlead under load. The ball-and-socket design lets blocks articulate up to 45 degrees and swivel freely. The 460 and 461 bases (high-load versions of the 010 and 029) have stainless steel reinforcement plates to handle the high load capacities of 57 mm and 75 mm Carbo blocks.


  • Base Ø (mm) 54
  • Breaking load (kg) 590
  • Fasteners (mm) 5 FH
  • Height (mm) 44
  • Maximum working load (kg) 181
  • Pin Ø (mm) 5
  • Use with blocks 2.25"/Little Fiddle/ratchets
  • Weight (g) 85

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