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
The Ronstan Series 30 Utility Block, part number RF417, is a versatile and reliable solution designed for various sailing and yacht rigging needs. Constructed with grade 316 stainless steel cheeks and UV-stabilized Acetal sheaves, this double utility block offers exceptional durability and resistance to harsh marine environments. Its lightweight yet sturdy design ensures ease of handling while maintaining long-term performance with virtually no maintenance requirements. The hollow rivets allow for flexible installation options, accepting fixing screws, shackles, or serving as a becket for additional purchase, making it suitable for a broad range of applications on both small dinghies and larger yachts. The Series 30 Utility Block is ideal for vang, cunningham, and trapeze retriever systems on dinghies, as well as leech line tackles and bunk adjusters on bigger vessels. Its high-quality materials and thoughtful design ensure reliable operation and extended service life, even under demanding conditions. Whether upgrading existing rigging or designing new systems, this utility block provides a cost-effective, maintenance-free solution that meets the rigging needs of serious sailors and boat builders alike.
Features:
Lightweight durable construction for easy handling and longevity
Economical design offering great value for marine rigging
Maintenance-free operation ensures reliable performance over time
Stainless steel cheeks provide corrosion resistance in marine environments
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