SKU: 78668662222

Harken 40mm Zircon block

Sale price$267.75 Regular price$297.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 17 - Sep 22

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Description

Harken 40mm Zircon blockUse the Harken Zircon blocks for precision trimming. The blocks are very efficient that you can adjust the sail and sheet tension perfectly. Harken Zircon blocks are made for jib sheets, spinnaker sheets and mainsail sheets. The Zircon blocks are the most efficient Harken has ever made. The performance is unmatched due to the ceramic ball bearings. With the Zircon blocks the energy loss caused by friction is extremely low. Even lower than the amazing

Use the Harken Zircon blocks for precision trimming. The blocks are very efficient that you can adjust the sail and sheet tension perfectly. Harken Zircon blocks are made for jib sheets, spinnaker sheets and mainsail sheets.

The Zircon blocks are the most efficient Harken has ever made. The performance is unmatched due to the ceramic ball bearings. With the Zircon blocks the energy loss caused by friction is extremely low. Even lower than the amazing Carbo range from Harken. So especially when the breeze backs off, the Zircon blocks let you ease.
Zircon bearings are more than 700% stronger than stainless bearings. This becomes evident when you need to ease a sail in very light air. You feel even the slightest fluctuations in sheet load.

 

Series Zircon
Sheaves Ø 40 mm
Number of sheaves 1
Bearing Ball bearing
Max rope diameter 8 mm
Swivel No
Cam No
Ratchet No
Breaking Strength (kg) 340
Safe Working Load (kg) 150
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: 78668662222

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4.1 ★★★★★
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Alston 34 Paerdegat 14 st
New York, US
★★★★★ 4
I just need the size 12
Size: 12, Color: Tan
Gm.i made a mistake the first time when I order the size 13. I return it because it was to big .so I reorder a size 12 now am looking at my order they still sending me the same size 13 i will have to return it again because it is to big sorry I dont know what going
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Reviewed in the United States on May 8, 2026
R
Verified Purchase
Rayan McLeod
Natrona Heights, US
★★★★★ 3
Worth the price
Size: 10, Color: Tan
A little tie on the valley,
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Reviewed in the United States on May 20, 2026
T
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Thomas Micheal Bennett
Dallas, US
★★★★★ 5
Good
Size: 9, Color: Black
Good good good
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Reviewed in the United States on December 24, 2025
D
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daira flores
Houston, US
★★★★★ 5
Le quedaron bien a mi hijos
Size: 8.5, Color: Black
El zapatos ese buenísimo
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Reviewed in the United States on December 3, 2025
S
Shredder
Omaha, US
★★★★★ 5
Comfortable and Classic Dress Shoes That Look Great All Day
Size: 12, Color: Cognac
These dress shoes have been a great addition to my wardrobe. Right out of the box, they felt comfortable thanks to the cushioned foam insole. I can wear them for long days at work or events without my feet feeling sore, which is something I really appreciate. The faux leather upper looks polished and well-made. The cap-toe design and subtle contrast stitching give the shoes a classic, professional appearance that pairs perfectly with dress pants or a suit. They have a clean, timeless style that never feels outdated. The fit is true to size, and the lace-up closure provides a secure and adjustable fit. I also like the stability of the stacked heel and the non-slip sole, which gives me confidence when walking on different surfaces. Overall, these shoes deliver both comfort and style. They look sharp, feel supportive, and hold up well with regular use. I am very happy with this purchase and would definitely recommend them to anyone looking for reliable, classic dress shoes.
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Reviewed in the United States on December 18, 2025

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