Series 50 All Purpose Block - Single - Universal Head
All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock universal head can be fixed in either of two planes, or free to swivel as required
Features:
Exceptionally high working loads
Low maintenance, long service life
Self lubricating sheave
Captive Lock universal head
Slotted pin shackle eliminates fouled lines
Applications: Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10M(33')
Materials:
Nylatron sheave
Grade 316 stainless steel load strap and head fitting
Impact and U.V. resistant, fiber reinforced Nylon cheeks
The Ronstan Series 50 All Purpose Block is designed for versatile sailing applications, providing a reliable solution for sheets, halyards, and control lines on boats up to 33 feet. Constructed with a durable self-lubricating Acetal polymer sheave and polished stainless steel races, this block ensures smooth operation under both dynamic and static loads. Its robust design delivers high working loads with minimal maintenance, making it ideal for cruising and racing scenarios. The captive Lock universal head can be fixed in two planes or allowed to swivel freely, offering flexible rigging options for various configurations. The slotted pin shackle reduces line fouling, enhancing safety and ease of use during sail adjustments. Suitable for mainsheet and halyard applications, as well as vang and spinnaker control lines, this block is built from high-quality materials including Nylatron sheave, Grade 316 stainless steel components, and impact-resistant, fiber-reinforced nylon cheeks, ensuring longevity in harsh marine environments.
Features:
Exceptionally high working loads for demanding sailing conditions
Low maintenance design promotes long service life
Self-lubricating sheave for smooth operation
Captive Lock universal head allows fixed or swivel mounting
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