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Ronstan Series 20 Single Swivel Hook Head Block

Cat.No:  4850 Sup. No:  RF20180

Availability: In stock

RRP: $24.08

our price $21.95
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  • Low friction
  • High static and dynamic load capacity
  • Lightweight
  • Low profile swivelling hook for quick and easy attachment
  • Hook suits rope, stainless steel and webbing fixing points


  • Sheave: 20 mm
  • Max. Rope: 6 mm
  • Max. Cable: - mm
  • Pin: - mm
  • M.W.L.: 135 kg
  • B. L.: 270 kg
  • Weight: 21 g


  • Dinghy control lines
  • Dinghy vangs
  • Cunninghams
  • Traveller controls


  • Stainless steel ball bearings
  • UV stabilised Acetal sheave
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fibre reinforced Nylon cheeks

Australia's largest marine accessories retailer. Serving boat owners since 1962. With sixteen big supermarkets and mail order departments Australia wide Whitworths Marine & Leisure offers the best service, convenient locations, a huge selection of quality products, and unbeatable prices.