Ronstan Series 40 All Purpose Double Block - RF41200

Double sheave all purpose block with swivel shackle head (non-locking). 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. Head swivels freely.

Features:

• Exceptionally high working loads
• Low maintenance, long service life
• Self-lubricating sheave
• Slotted pin shackle eliminates fouled lines
• Two way head post

Specifications:

• Sheave Diameter: 1 9/16" (40 mm)
• Maximum Rope Diameter: 7/16" (10 mm)
• Pin Diameter: 3/16" (5 mm)
• Maximum Working Load: 1320 lbs (600 kg)
• Breaking Load: 2650 lbs (1200 kg)
• Weight: 4.8 oz (135 g)
• Applications:
  • Mainsheet
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sports boats up to 26' (8 m)
• Materials:
  • U.V. stabilized Acetal sheaves
  • Impact and U.V. resistant, fiber reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load strap and head fitting
  • Sheaves: UV stabilized acetal
  • Cheeks: Impact modified, fibre reinforced and UV stabilized nylon