Ronstan Series 50 All Purpose Block - Single - Universal Head

The Series 50 All Purpose Block - Single - Universal Head is an essential component for any marine enthusiast seeking reliable and versatile hardware for their vessel. Designed to handle a wide range of applications, this all-purpose block ensures smooth operation and enduring performance in both cruising and racing environments.

Features

• High Load Capacity: Capable of handling exceptionally high working loads, ensuring safety and reliability.
• Low Maintenance: Constructed for long service life with minimal upkeep, reducing the need for frequent replacements.
• Self-Lubricating Sheave: Acetal polymer sheaves are self-lubricating, providing smooth operation and reducing friction.
• Captive Lock™ Universal Head: Allows for versatile mounting options, either fixed in two planes or free to swivel as needed.
• Slotted Pin Shackle: Eliminates the risk of fouling lines, enhancing safety and ease of use.

Applications

This versatile block is ideal for a variety of applications on boats up to 10 meters (33 feet) in length, including:

• Mainsheet and halyard systems
• Vang control lines
• Spinnaker deployment and control

Materials

• Nylatron® Sheave: Provides excellent resistance to wear and smooth operation under load.
• Grade 316 Stainless Steel: Used for the load strap and head fitting, offering superior corrosion resistance in marine environments.
• Fiber Reinforced Nylon Cheeks: Impact and UV resistant, ensuring durability and longevity.

Specifications

Specification	Details
Sheave Diameter:	50mm (2")
Maximum Rope Diameter:	12mm (1/2")
Maximum Pin Diameter:	5mm (3/16")
Minimum Working Load (MWL):	750kg (1,650lbs)
Breaking Load (B.L.):	1,500kg (3,310lbs)
Weight:	118g (4.1oz)

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.