7/16" (10mm) Ronstan Single, becket, universal head Block

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  • Exceptionally high working loads
  • Low maintenance, long service life
  • Self-lubricating sheave
  • Captive Lock universal head
  • Slotted pin shackle eliminates fouled lines
  • Snap fit removable becket pin


  • U.V. stabilised Acetal sheaves
  • Impact and U.V. resistant, fibre reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fibre reinforced Nylon cheeks

All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools



Reference Imperial Metric
Sheave Ø 1-9/16 in. 40 mm
Max. Rope Ø 7/16 in. 10 mm
Pin Ø 3/16 5 mm
M.W.L. 880 lb. 400 kg
B. L. 2200 lb. 1000 kg
Weight 2.8 oz. 80 g
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