![Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573]](http://finandanchor.com/cdn/shop/files/55259XL.jpg?v=1704353644&width=1000)
Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573]
$23.83
+ Free Shipping
- Genuine Manufacturer-Backed Gear – 100% authentic products, no 3rd party refurbs.
- Fast & Free U.S. Shipping – Ships same-day from our U.S. warehouses (order by 12pm PST).
- Let's chat! 💬 Expert U.S. Support – Our friendly crew (yes, real humans!) is here to help.
- Learn More Hassle-Free Returns – 30-day returns & no restocking fees. Shop with confidence!
![Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573]](http://finandanchor.com/cdn/shop/files/55259XL.jpg?v=1704353644&width=1000)
Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573]
$23.83
Product Details & Specifications
Series 25 Utility Block - Single - Swivel Shackle Head
Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase.
Features:
- Lightweight durable construction
- Economical
- Maintenance free
Applications:
- Vang, cunningham and trapeze retriever systems on dinghies
- Leech line tackles, bunk adjusters, etc on larger boats
Materials:
- U.V. stabilized acetal sheaves
- Grade 316 Stainless Steel cheeks
Specifications:
Sheave Ø: 25mm(1")
Max. Rope Ø: 6mm(1/4")
Pin Ø: 4mm(5/32")
M.W.L.: 150kg(330lbs)
B. L.: 300kg(660lbs)
Weight: 20g(0.7oz)