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November 19, 2020 1 min read
Harken wire blocks are designed for strength and to carry wire halyards and high-strength control lines on all types of boat.
These Harken blocks have high-load composite bearings with a lube anodised sheave for strength and corrosion resistance.
The wire blocks are available in three different sizes from Harken, the 25mm, 38mm and 51mm. The most common in smaller boats are the 25mm and 38mm.
You'll see the 25mm forkhead wire block at the top of the Laser kicker set up and the larger sizes used on internal mainsheet systems to support thin dyneema running through the blocks in a purchase system.
As an example we use the 38mm versions on our Tornado internal mainsheet system where 3mm dyneema runs through the purchase systems. Running thinner dyneema provides the strength you need but with far less friction making the system run smoothly.
If you have any questions about Harken Wire Blocks then get in touch, we are always happy to discuss your sailing systems and what might work best for you.
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I had it sent to my son, who will bring it to the US with him next month, so I cant write a review until I get it!
I needed this small pin urgently for a sail training night, and it arrived in good time
Amazing service, the staff got our order in with no issue and quick delivery. The replica mast are a perfect alternative.
Excellent service. Arrived very quickly. Highly recommend, have used Sailing Chandlery several times - always quick and efficient.
I have the 270 boots 2020, But these 170 boots are great, much easier to get on and off and very grippy and comfortable
Great range of products, very efficient service, item arrived well packed and on time
Really strong, does what it needs to!
Great product, does the job for a good price
Perfect product at good price and fast delivery. Thank you.
Best spring/summer hiking wetsuit.
As per usual the Sailing Chandlery team got these to me in a flash! Amazing service!!!
I have previously used the Superwarm version of this hiker and it was brilliant!
I purchased these as I get far too hot in my winter hikers during the sweaty summer months!
Only used once so far, but were warm enough in 15 degrees C and worked exactly as expected!
Good size handle, comfortable grip. I find I have to go down a size in needle than that advised for the rope I’m splicing.
Fantastic service and reasonable prices
Excellent service product delivered very quickly and exactly the item I required.
These were fine. But what was an issue was the number of emails I received after.
This is my most used item in my sailing bag. Keeps me warm on colder days underneath layers and I also wear it on top in the summer. The fleece lining inside is very comfortable.
