SKU: 2105441941

Ronstan Series 50 All Purpose Block - Single Stand Up

Sale price$46.59 Regular price$51.77
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

Ronstan Series 50 All Purpose Block - Single Stand UpSeries 50 All Purpose Block Single Stand Up Features: Exceptionally high working loads Low maintenance, long service life Self lubricating Acetal polymer sheave ensures low friction and extreme durability Captive Lock universal head Slotted pin shackle eliminates fouled lines Mount with 2 x 5mm (3 6") fasteners (not supplied) All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless

Series 50 All Purpose Block - Single Stand Up

Features:

  • Exceptionally high working loads
  • Low maintenance, long service life
  • Self-lubricating Acetal polymer sheave ensures low friction and extreme durability
  • Captive Lock™ universal head
  • Slotted pin shackle eliminates fouled lines
  • Mount with 2 x 5mm (3/6") fasteners (not supplied)

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. Quick adjusting cleat arms require no tools to adjust and fix securely in position. Becket pin is removable so line can be spliced prior to fitting.

Applications:

  • Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)
  • S60 - on boats up to 12m (40ft)
  • Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs
  • On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.

Materials:

  • Grade 316 stainless steel load strap
  • Impact and UV resistant, fiber reinforced Nylon cheeks
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 2105441941

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4.8 ★★★★★
Based on 14 reviews
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MakerTool
Charlottesville, US
★★★★★ 5
Loong jumper test cables.
Size: silicone wire red 25ft and black 25ft, Color: Red and Black
Over-kill makes nice tools. This is good tinned fine stranded wire with quality silicone insulation. Five-star stuff, without buying some expensive large quantity minimum from a high-end wire manufacturer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025
R
Verified Purchase
Rhbones
Cuba, US
★★★★★ 5
Works for my 2011 115hp Etec
Size: For 75-250 HP
Exact fit and cheaper than a trip to a repair shop. Make sure you have the proper gasket sealer, a good scrapper that's not going to dig into the sealing surface, and tools for the job. I went on my computer and downloaded a video that walked me through the process. I'm a mechanic by trade but wanted to ensure everything was correct. I've been running the motor now for a couple of months. Peeing just as it's supposed to. No more delivering, waiting, and retrieving my boat from the shop for its routine service. Just follow your owner's manual to make sure you do all the necessary maintenance.
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Reviewed in the United States on February 8, 2025
C
Verified Purchase
Chelsey R
Boise, US
★★★★★ 5
Great replacement
Size: For 5.5HP 6HP 7.5HP
Works as it should. Easy to swap out.
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Reviewed in the United States on August 12, 2025
D
Verified Purchase
Dan
Charlottesville, US
★★★★★ 5
Works
Size: For 60 65 70 75 HP
Works great
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Reviewed in the United States on May 21, 2026
B
Verified Purchase
Billy kinney
Phoenix, US
★★★★★ 4
Great product
Size: For 85-300 HP
Complete rebuild kit for $38 and great quality and fast delivery
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Reviewed in the United States on August 30, 2025

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