Ronstan Series 50 All Purpose Block - Fiddle - Becket

Build a control-line purchase system with the Ronstan Series 50 all-purpose fiddle block with becket. It suits cruising and racing tasks, including fine-tune mainsheets, cunninghams and backstays, while handling both moving loads and sustained tension.

Key features

• Self-lubricating acetal sheaves turn on polished stainless steel races to keep friction low.
• The Captive Lock universal head can swivel freely or stay fixed in either of two planes to suit your rigging.
• A removable becket pin lets you splice the line before installation and locks without tools, a clevis pin or a split ring.
• The slotted shackle pin helps keep lines from fouling.
• Impact- and UV-resistant nylon cheeks support durability with little maintenance.

Specifications

• Series: 50 All Purpose
• Configuration: Fiddle block with becket
• Head: Captive Lock universal
• Sheave material: Acetal polymer
• Race material: Polished stainless steel
• Load strap material: Grade 316 stainless steel
• Cheek material: Fiber-reinforced nylon
• Listed boat size: Up to 10m (33ft)
• Replacement becket pin: RF51010
• Replacement shackle: RF150

Good to know

Listed applications include mainsheets, halyards, vangs and spinnaker control lines, as well as fine-tune tackles and other control-line purchase systems.