Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Ronstan Series 20 Ball Bearing Block - Swivel Hook HeadSeries 20 Ball Bearing Block Swivel Hook Head Features: Low friction High static and dynamic load capacity Lightweight Low profile swivelling hook for quick and easy attachment Hook suits rope, stainless steel and webbing fixing points Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low friction Applications: Dinghy control lines Dinghy vangs Cunninghams Traveller controls Materials:
Series 20 Ball Bearing Block - Swivel Hook HeadFeatures:
- Low friction
- High static and dynamic load capacity
- Lightweight
- Low profile swivelling hook for quick and easy attachment
- Hook suits rope, stainless steel and webbing fixing points
- Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction
Applications:
- Dinghy control lines
- Dinghy vangs
- Cunninghams
- Traveller controls
Materials:
- Stainless steel ball bearings
- UV Stabilized Acetal sheave
- Grade 316 stainless steel load strap and head fitting
- Impact and UV resistant, fiber reinforced Nylon cheeks
Specifications:
Sheave Ø: 20mm(3/4")
Max. Rope Ø: 6mm(1/4")
M.W.L.: 135kg(300lbs)
B. L.: 270kg(590lbs)
Weight: 21g(0.7oz)
Manufacturer : Ronstan
Manufacturer Part No : RF20180
UPC : 9316800416622
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
4.7 ★★★★★
Based on 137 reviews
Sort
Product Reviews
★★★★★ 5
Book as advertised
Format: Paperback
Book as advertised
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 5
good quality
Format: Paperback
Good quality book. Bought for NP school.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
★★★★★ 5
Value
Format: Paperback
Very satisfied, I'm a person who would rather read a book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2025
★★★★★ 5
Good condition
Format: Paperback
As described
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2025
★★★★★ 4
Book is fine, online access…not so much
Format: Paperback
The online version leaves a lot to be desired.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2024