Ronstan Series 40 All Purpose Fiddle Block, RF41500

The Ronstan Series 40 All Purpose Fiddle Block is a versatile solution for sheets, halyards, and control line applications on cruising and racing sailboats up to 8m (26 ft). These blocks feature self-lubricating acetal polymer sheaves running on stainless steel races to perform reliably under both dynamic and static loads.

Key Features:

• High working load capacity with a long service life
• Captive Lock universal head allows for swivel or fixed-plane operation
• Slotted pin shackle design prevents line fouling
• U.V. stabilized acetal sheaves and U.V. resistant, fiber-reinforced nylon cheeks
• Grade 316 stainless steel bearing race, load strap, and head fitting

Common Applications:

• Mainsheet and halyard systems
• Vang and spinnaker control lines
• Fine-tune mainsheet tackles, cunninghams, and backstays

Replacement Parts:

• Replacement Becket Pin: RF41500
• Replacement Shackle: RF150