SKU: 19173872486

Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]

Sale price$46.59 Regular price$51.77
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

Ronstan Series 50 All Purpose Block - Single Stand Up [RF51140]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

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: 19173872486

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4.3 ★★★★★
Based on 29 reviews
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Mario J.
Chelsea, US
★★★★★ 5
Excellent Gentleman Watch
Good quality, great looking, solid materials… an awesome!! watch
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Reviewed in the United States on May 24, 2024
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Lou Spagnola
Cuba, US
★★★★★ 5
It’s a real watch!
This watch punches way above its price point. Sapphire, silicone, 80 hour movement (although it needs to be hand wound once in a while if you don’t wear it every day). Entry level Swiss luxury! Of course, it’s not a Rolex or an Omega, but it’s definitely a real watch.
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Reviewed in the United States on October 6, 2025
M
Verified Purchase
Mark Perry
Lexington, US
★★★★★ 5
Timeless Elegance with a Modern Twist
Color: Anthracite
A true masterpiece. The anthracite dial is sleek and sophisticated, while the 42mm case size strikes the perfect balance between bold and refined. The automatic movement is smooth, and I love the understated design—classy enough for formal events but versatile enough for everyday wear. It’s a watch that truly elevates any outfit. Pros: Stunning design, high-quality craftsmanship, and automatic movement for precision. Cons: The strap is a bit stiff at first, but it softens with wear. If you're looking for a watch that combines traditional Swiss quality with modern aesthetics, the Mido Commander Icône is a timeless choice!
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Reviewed in the United States on December 4, 2024
J
Verified Purchase
Jerry Jones
Pawtucket, US
★★★★★ 5
Quality and affordable Swiss chronometer.
Color: Silver
This is a basic but certified accurate watch which is what I wanted. It is a very good looking watch and shows quality at every level. I have had it for seven days now and it has gained between 7 or 8 seconds which exceeds the certification standard. If it maintains this level of accuracy it will far exceed my expectations.
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Reviewed in the United States on August 8, 2023
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Camilo
Fort Morgan, US
★★★★★ 5
Excellent
Color: Gold
Pure class!
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Reviewed in the United States on November 16, 2024

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