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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.
Always fast delivery and a good selection of parts.
A good product efficiently dispatched
The definitive racing watch - my daughter is delighted. Hopefully it will be put to good use in the Uni sailing team. Great service as usual from Sailing Chandlery.
Just the job for mooring warps for my motor canoe. Pleasant to handle and plenty of elasticity. Delivery prompt. Very happy.
Very pleased - strong rowlock at a reasonable price. Prompt delivery.
Quality product. I have used these before, but have learned only recently that replacement O-rings are available. Definitely a bonus!
Delivery was prompt and the goods were well packaged. Very pleased.
Perfect shape for a complicated job and delivery and communications were excellent
The 750ml size is idea for longer outings, particularly in the warmer months. A good quality bottle.
Sturdy well-shaped brim, good stitching. All in all, very good value.
A very robust design with an easy to use valve and attachment ring. It also has a loop to tuck the valve away to stop it snagging on the shroud as it's hoisted which is a nice addition. Overall an excellent float.
Good price, delivered on time.
Great to deal with no problems .
Done quickly
It's sturdy, it's not going to fail like a block. Great for trapeze blocks
As requested and fast delivery
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