Ronstan Series 40 All Purpose Block - Triple - Swivel Head
SKU: 43566174511

Ronstan Series 40 All Purpose Block - Triple - Swivel Head

Sale price$75.87 Regular price$84.30
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Ronstan Series 40 All Purpose Block - Triple - Swivel HeadSeries 40 All Purpose Block Triple Swivel Head Features: Exceptionally high working loads Low maintenance, long service life Self lubricating sheave Slotted pin shackle eliminates fouled lines Two way head post Spare parts RF41010 Replacement Becket Pin, RF150 Shackle 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

Series 40 All Purpose Block - Triple - Swivel Head

Features:

  • Exceptionally high working loads
  • Low maintenance, long service life
  • Self-lubricating sheave
  • Slotted pin shackle eliminates fouled lines
  • Two way head post
  • Spare parts - RF41010 Replacement Becket Pin, RF150 Shackle

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.

Applications:

  • Mainsheet
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)

Materials:

  • U.V. stabilised Acetal sheaves
  • Impact and U.V. resistant, fibre reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load strap and head fitting
  • Sheave: UV stabilised acetal
  • Cheeks: Impact modified, fiber reinforced and UV stabilized nylon
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: 43566174511

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4.1 ★★★★★
Based on 1667 reviews
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Amber Di Falco
Bozeman, US
★★★★★ 5
Excellent solution to prevent vial contamination.
Good fit. Helps keep my vials sealed and sanitary. Clean before and during each use to prevent issues. The large caps are a great fit on 10ml water vials and the small caps are a great fit on 3ml research vials. The price was good, the variety of size and color are nice. Overall no complaints to report.
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Reviewed in the United States on February 21, 2026
A
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Angela
Lowell, US
★★★★★ 5
💯
Súper buenas y se puede lavar
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Reviewed in the United States on March 9, 2026
R
Verified Purchase
Ray Hernandez
Louisville, US
★★★★★ 4
Great for the price
They are very nice quality, but the 3ml are a little tight on the vial. This is not necessarily a bad thing, but something to note. The 10ml are a little lose on 10ml, but work great on 30ml hospira bac water
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
E
Verified Purchase
Elizabeth Allen
Draper, US
★★★★★ 3
Some easy, some not
Some fit good, some are a little rough to get on
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Reviewed in the United States on February 4, 2026
J
Verified Purchase
Jacqueline
Charlottesville, US
★★★★★ 5
Great material
Great product
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Reviewed in the United States on March 4, 2026

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