Ronstan 50 mm Series 50 Block (RF51110)

The Ronstan 50 mm Series 50 Block with Becket and Swivel Head (RF51110) is a great all-purpose block.The 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.

Features:

• Low maintenance, long service life
• Self-lubricating sheave
• Captive Lock™ universal head
• Slotted pin shackle eliminates fouled lines
• Multi-position cleat arm
• Applications:
• Mainsheet
• Halyard
• Vang
• Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10 m (33 ft)
• Ideal for fine-tune mainsheet tackles, cunninghams, backstays and other control line purchase systems