SKU: 86179723529

Ronstan Series 40 All Purpose Block - Single - Universal Head [RF41100]

Sale price$22.91 Regular price$25.45
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Ronstan Series 40 All Purpose Block - Single - Universal Head [RF41100]Series 40 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

Series 40 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
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')


Materials:
  • U.V. stabilized Acetal sheaves
  • Impact and U.V. resistant, fiber reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load strap and head fitting


Specifications:
Sheave Ø: 40mm(1-9/16")
Max. Rope Ø: 10mm(7/16")
Pin Ø: 5mm(3/16")
M.W.L.: 400kg(880lbs)
B. L.: 1,000kg(2,200lbs)
Weight: 71g(2.5oz)
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: 86179723529

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4.9 ★★★★★
Based on 21 reviews
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angela backus
Charlottesville, US
★★★★★ 5
Great for hiding items!
Color: Black, Size: 3 Panel
This is great! I use it to hide my cats litter box in a small apartment. Put a plant in front of it and no one knows what it is hiding.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
T
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taylor
West Palm Beach, US
★★★★★ 4
Good quality
Color: Dark Mocha, Size: 3 Panel
Was shorter than I realized, ended up returning. Product was good quality however
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Reviewed in the United States on November 18, 2025
L
Verified Purchase
Lucas Satterfield
Phoenix, US
★★★★★ 5
Light Weight and Affordable Office Decor
Color: Dark Mocha, Size: 3 Panel
I always read reviews before purchasing- so I understood this was going to be a small, light weight tri-fold. It is not meant to be extremely durable- so it wouldn't be great to have around children or animals - but is functional for certain situations. I use this as a divider between my work from home desk and my bed during the day and it is the perfect tool to keep my brain in "work mode", and not sleep mode.
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Reviewed in the United States on April 24, 2026
K
Verified Purchase
Katie Green
Lowell, US
★★★★★ 5
Love them! Well made!
Color: Dark Mocha, Size: 3 Panel
Very nice product, nice color. Just too short. Will be sending back for a taller one to match other 2 I ordered! Great customer service!
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Reviewed in the United States on March 12, 2026
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Verified Purchase
Suz
Dallas, US
★★★★★ 5
Looks good and is stable
Color: Dark Mocha, Size: 3 Panel
This is perfect for my needs. I have a large bathroom window that anyone can see the toilet when the window is open. The weather is so beautiful here for many months and I hated keeping that window closed. This screen is perfect. It covers the open part of the window so no one can see in but the air flows freely (the glass is frosted so it is not a problem when closed). The screen is very lightweight and came fully assembled (which is amazing anymore). It feels stable and I think it is a good value for the money.
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Reviewed in the United States on July 20, 2025

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