Ronstan Series 40 All Purpose Block - Fiddle - Becket - Cleat

The Series 40 All Purpose Block is an essential component for marine and boating enthusiasts, delivering exceptional performance and durability for a wide range of sailing and rigging applications. Engineered with high-quality materials, this block ensures reliable operation whether you’re cruising the open seas or racing competitively.

Key Features

• High Working Loads: Capable of handling exceptionally high loads, ensuring safety and reliability under demanding conditions.
• Low Maintenance: Designed for longevity with minimal upkeep, providing a long service life even in harsh marine environments.
• Self-Lubricating Sheave: Acetal polymer sheaves reduce friction and wear, enhancing performance and durability.
• Captive Lock™ Universal Head: Versatile head can be fixed in two planes or allowed to swivel freely, offering flexibility in rigging setups.
• Slotted Pin Shackle: Eliminates fouling of lines, ensuring smooth operation and ease of use.
• Snap Fit Removable Becket Pin: Facilitates easy line splicing and maintenance without the need for specialized tools.
• Multi-Position Cleat Arm: Adjustable cleat arms allow for quick adjustments without tools, securing lines firmly in place.
• Spare Parts Included: Comes with RF41010 Replacement Becket Pin and RF150 Shackle for easy maintenance and replacements.

Technical Specifications

Feature	Description
Sheave Material	U.V. stabilized Acetal polymer
Cheeks	Impact and U.V. resistant, fiber-reinforced Nylon
Bearing Race	Grade 316 stainless steel
Load Strap & Head Fitting	Grade 316 stainless steel

Applications

The Series 40 All Purpose Block is versatile and suitable for various marine applications, including:

• Mainsheet: Provides reliable control for adjusting the mainsail.
• Halyard: Essential for raising and lowering sails with precision.
• Vang: Supports the depth of the mainsail, enhancing sail shape and performance.
• Spinnaker Control Lines: Ideal for managing spinnakers on off-the-beach catamarans, one-design classes, and sportsboats up to 8m (26ft).
• Fine-Tune Tackle Systems: Perfect for mainsheet tackles, cunninghams, backstays, and other control line purchase systems.

Durable Materials for Long-Lasting Performance

Constructed with premium materials, the Series 40 All Purpose Block is built to withstand the rigorous demands of marine environments:

• U.V. Stabilized Acetal Sheaves: Ensure smooth operation and resistance to environmental degradation.
• Fiber-Reinforced Nylon Cheeks: Offer excellent impact and UV resistance, maintaining integrity over time.
• Grade 316 Stainless Steel: Used in the bearing race, load strap, and head fitting for superior corrosion resistance and strength.

Included Spare Parts

Maintain optimal performance with included spare parts:

• RF41010 Replacement Becket Pin: Easily replaceable to ensure continuous operation.
• RF150 Shackle: Provides secure connections for various rigging needs.

Why Choose the Series 40 All Purpose Block?

Whether you're upgrading your boat’s rigging or outfitting a new vessel, the Series 40 All Purpose Block offers unmatched reliability, versatility, and performance. Its robust construction and thoughtful design make it a top choice for sailors seeking quality hardware that stands the test of time.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.