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 RF50110 50mm Single Swivel Shackle Head with BecketPrecision moulded Acetal sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2 stage ball bearing system provides consistent performance over the full load range. Head can be locked at 0 or 90 by engaging the grub screw in either the 0 or 90 degree position. Applications: Mainsheet Spinnaker sheets Halyards and other primary applications on boats up to 10m (33ft) Materials: Acetal ball bearings UV stabilised
| Precision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position. |
Applications:
- Mainsheet
- Spinnaker sheets
- Halyards and other primary applications on boats up to 10m (33ft)
Materials:
- Acetal ball bearings
- UV stabilised Acetal sheave
- Grade 316 stainless steel load strap and head fitting
- Impact and UV resistant, fibre reinforced Nylon cheeks
Features:
- Sheave Diameter - 50mm
- Maximum Rope Diameter - 12mm
- Pin diameter - 5mm
- Maximum working load - 500kg
- Breaking load 1500kg
- Weight 133g
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
4.5 ★★★★★
Based on 654 reviews
Sort
Product Reviews
★★★★★ 5
Love these socks
Size: Large, Color: (035) Steel / White / Black
Great quality socks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 4
Good quality
Size: Large, Color: (035) Steel / White / Black
These are a bit thicker then a compression sock and they come up higher on the ankle than a no-show sock normally does. They are very comfortable and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
★★★★★ 5
Good quality socks
Size: X-Large, Color: (001) Black / Black / White
Great value and great product and comfort. Not thin and wears well not like thin socks in a size that fits
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
★★★★★ 5
Socks
Size: Medium, Color: (001) Black / Black / White
Great price, perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
★★★★★ 5
The best athletic socks you can buy!
Size: X-Large, Color: White/Graphite (6-pairs)
These are the very best athletic socks you can buy period. I have had several pairs that are over 10 years old and still in wearable condition. We are talking several hundred washes. They are super comfortable and no show. I can't overstate how great these socks are.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2024
recommand products
DAVID LEE ROTH - THE WARNER RECORDINGS (1985-1994) [ROCKTOBER 2025] (5xLP BOX SET)
124.99
SAUL WILLIAMS & CARLOS NIÑO & FRIENDS - SAUL WILLIAMS MEETS CARLOS NIÑO & FRIENDS AT TREEPEOPLE (2xLP)
36.99
NEGATIVE APPROACH - TIED DOWN (LP)
23.99
COURTNEY BARNETT - SOMETIMES I SIT AND THINK, AND SOMETIMES I JUST SIT [10th ANNIVERSARY] (LP)
29.99
KAROL G - TROPICOQUETA (2xLP/CD)
39.99