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Description
Ronstan Series 40 Swivel Head All Purpose Double Block w/ BecketProduct Description Ronstan Series 40 Swivel Head All Purpose Double Block w Becket Features: Exceptionally high working loads Low maintenance, long service life Self lubricating sheave Slotted pin shackle eliminates fouled lines Two way head post Snap fit removable becket pin Spare parts RF41010 Replacement Becket Pin, RF150 shackle Specifications: Sheave 1 9 16 in. (40mm) Max. Rope 7 16 in. (10mm) Pin 3 16 in. (5mm) M. W. L. 1320 lb. (600 kg) B. L.
Product Description
Ronstan Series 40 Swivel Head All Purpose Double Block w/ Becket
Features:
Exceptionally high working loads
Low maintenance, long service life
Self-lubricating sheave
Slotted pin shackle eliminates fouled lines
Two way head post
Snap fit removable becket pin
Spare parts - RF41010 Replacement Becket Pin, RF150 shackle
Specifications:
Sheave Ø - 1 9/16 in. (40mm)
Max. Rope Ø - 7/16 in. (10mm)
Pin Ø - 3/16 in. (5mm)
M.W.L. - 1320 lb. (600 kg)
B. L. - 2650 lb. (1200 kg)
Weight - 5 oz. (143 g)
Product Information:
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.Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.
Applications:
Mainsheet
Halyard
Vang
Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
Materials:
U.V. stabilized 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
Sheaves: UV stabilized acetal
Cheeks: Impact modified, fiber reinforced and UV stabilized nylon
Features:
Specifications:
Product Information:
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.Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.
Applications:
Materials:
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Perfect!!
Size: 23.6 Inch, Color: Rustic Brown, Size: 23.6 Inch, Color: Rustic Brown
Easy to hang and stunning!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Good quality shelves
Size: 23.6 Inch, Color: White, Size: 23.6 Inch, Color: White
Very good quality. Easy to install. Love them in my bathroom.
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Reviewed in the United States on April 18, 2026
★★★★★ 4
Very spacious and beautiful
Size: 23.6 Inch, Color: White, Size: 23.6 Inch, Color: White
A lot of my books fit on here and there’s still more room left if I wanted to buy more books. It’s a simple looking bookshelf but it’s really pretty. It’s also sturdy the only reason I gave it a 4 stars instead of 5 was because it comes with its own plastic screw anchors and they are crap. The shelves were wobbly when we installed them using the plastic screw anchors that came with the packaging. My dad set mine up and luckily he had a bunch of his own so he switched them out with better screw anchors. Once we made that switch it was perfect, there was no wobble or shaking at all. So that’s my only piece of advice. Besides for the screw anchors everything else is perfect
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Reviewed in the United States on August 25, 2024
★★★★★ 5
Easy to install
Size: 23.6 Inch, Color: White
Super easy to install. I use different wall anchors. The anchors like all anchors that come with shelves are not great. The shelves look very clean on the wall.
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Reviewed in the United States on March 31, 2026
★★★★★ 5
Easy to install
Size: 23.6 Inch, Color: White, Size: 23.6 Inch, Color: White
This product exceeded my expectations. The installation process was incredibly straightforward—even for someone with little to no experience—and the instructions were clear and easy to follow. Once installed, it feels very sturdy and secure, with no wobbling or shifting at all. You can tell it’s well-designed and made with quality materials. I also appreciated how quickly I was able to set everything up without needing any extra tools or help. Overall, it’s a reliable, user-friendly product that I would absolutely recommend to anyone looking for something dependable and easy to install. Drill is required though.
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Reviewed in the United States on March 30, 2026