51mm utility block/mast collar delrin


  • Sheave Dia. 2" (51 mm)
  • Max Line 7/16" (11 mm)
  • Pin dia. .510 Hole
  • L 3-3/32" (79 mm)
  • W 2-1/8" (54 mm)
  • T 13/16" (21 mm)
  • SWL 1750 lbs (795 kg)
  • Weight 7.1 oz (201 g)

SKU: SC505-20

$247.90
Sold Out - Backorder Available

Schaefer Series 5, 51mm 505-20 fits Isomat mast collar with a pin diameter of .510".

Stainless steel cheeks and Delrin™ sheave ensure smooth operation and high safe working load. 

SKU: SC505-20

  • Sheave Dia. 2" (51 mm)
  • Max Line 7/16" (11 mm)
  • Pin dia. .510 Hole
  • L 3-3/32" (79 mm)
  • W 2-1/8" (54 mm)
  • T 13/16" (21 mm)
  • SWL 1750 lbs (795 kg)
  • Weight 7.1 oz (201 g)
SKU SC505-20
Brand Schaefer Marine

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