Ronstan Series 50 Blocks -Single with Universal head

$ 47.95

Ronstan Series 50 Blocks -Single with Universal head

In stock

Product Information

Ronstan Series 50 All Purpose Single Block with universal head.

This all-purpose (AP) block is 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.
  • It has a durable and long service life
  • This block is the right choice for sheets, halyards, and control line applications for cruising and racing.
  • The Captive Lock universal head can be fixed in either of two planes, or free to swivel as required.
  • Ideal to use for Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m.
  • Exceptionally high working loads.
  • Low maintenance, long service life.
  • Self-lubricating Acetal polymer sheave ensures low friction and extreme durability.
  • Slotted pin shackle eliminates fouled lines.


  • Made from Marine Grade 316 stainless steel load strap and head fitting
  • Impact and UV-resistant, glass fibre-reinforced nylon cheeks


  • Sheave Ø: 50mm
  • Rope Ø: 8mm -12 mm Max.
  • Pin Ø: 5.0mm
  • Weight: 118gm
  • B.L: 1500kg
  • M.W.L: 750kg