Ronstan RF417 Series 30 Double Utility Block with Tube Rivet

Series 30 Utility Block- Double, Tube Rivet

Features:

• Lightweight durable construction
• Economical
• Maintenance free

Product Information:

Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance.Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase.

Applications:

• Vang, cunningham and trapeze retriever systems on dinghies
• Leech line tackles, bunk adjusters etc on larger yachts

Materials:

• U.V. stabilized Acetal sheaves
• Grade 316 stainless steel cheeks

Ronstan RF417 Series 30 Utility Block – Double, Tube Rivet is a lightweight, durable double block designed for practical sailboat and yacht control-line applications. Built for sailors, riggers, and boat owners, this economical utility block provides reliable line handling for vang, cunningham, trapeze retriever, leech line, and bunk adjustment systems while requiring virtually no maintenance.

The RF417 combines stainless steel cheeks with U.V.-stabilized Acetal sheaves for durable service in marine environments. Its double-sheave configuration supports efficient line routing, while the tube rivet design accepts fixing screws or shackles. The hollow rivet can also be used as a becket when additional purchase is needed, giving riggers more installation flexibility across a range of sailboat systems.

Use the Ronstan Series 30 utility block on dinghies for vang, cunningham, and trapeze retriever systems. On larger yachts, it is suitable for applications such as leech line tackles and bunk adjusters. Its maintenance-free construction helps simplify ongoing equipment care, making it a practical choice for marine hardware installations where dependable, compact line control is required.

Key Features:

• Feature: Lightweight durable construction – Provides practical marine hardware performance without unnecessary bulk.
• Feature: Double utility block design – Supports efficient routing for a variety of sailboat control lines.
• Feature: U.V.-stabilized Acetal sheaves – Designed for durable use in boating applications.
• Feature: Grade 316 stainless steel cheeks – Provides corrosion-resistant marine construction.
• Feature: Hollow tube rivet – Accepts fixing screws or shackles and can serve as a becket for extra purchase.
• Feature: Maintenance-free construction – Helps reduce routine upkeep requirements.

Product Details:

• Brand: Ronstan
• Part number: RF417
• Series: 30
• Product type: Double utility block with tube rivet
• Sheave material: U.V.-stabilized Acetal
• Cheek material: Grade 316 stainless steel
• Recommended applications: Dinghy vang, cunningham, and trapeze retriever systems; larger-yacht leech line tackles and bunk adjusters

Choose the Ronstan RF417 Series 30 Double Utility Block for versatile, low-maintenance line control in demanding sailing and rigging applications.

SEO META DESCRIPTION: Shop the Ronstan RF417 Series 30 double utility block with tube rivet, Acetal sheaves, and stainless steel cheeks for marine rigging.

Features:

• Lightweight durable construction – Provides practical marine hardware performance without unnecessary bulk.

• Double utility block design – Supports efficient routing for a variety of sailboat control lines.

• U.V.-stabilized Acetal sheaves – Designed for durable use in boating applications.

• Grade 316 stainless steel cheeks – Provides corrosion-resistant marine construction.

• Hollow tube rivet – Accepts fixing screws or shackles and can serve as a becket for extra purchase.

• Maintenance-free construction – Helps reduce routine upkeep requirements.