looking for name and source for a special cleat

[carltonmoore]

Hi everyone. First time posting for me.
I'm trying to find the name of a special cleat that is on my MacGregor 25 mast. It is longer on steeper on one side so that when the halyard is pulled around it locks in.
Does anyone know if there is a name for this hardware or where I can purchase them?

Thank you

 

[Stu Jackson]

It's called a JAM cleat. Which is the very reason you really don't want one. Defender or West Marine or any chandlery. Jams are bad. A regular cleat would work just as well with a couple of wraps.

 

[carltonmoore]

Hi Stu
Thank you for taking the time to respond.
My brother in law has them on his MacGregor 22. They are located behind the winches and he uses them to old his Genoa sheets. I have regular cleats there and have to take extra turns with the line. He can release his much quicker.

 

[justsomeguy]

Hi Stu
Thank you for taking the time to respond.
My brother in law has them on his MacGregor 22. They are located behind the winches and he uses them to old his Genoa sheets. I have regular cleats there and have to take extra turns with the line. He can release his much quicker.

I've got the same jam cleats aft of the winches. Without the bight used around the horn, they hold well enough and are pretty quick to release.
Don't think I'd want it for a halyard, though.

Google the term, and you'll find them at some chandlery, I'm sure. Maybe try Blue Water Yachts?

 

[higgs]

I wonder how quickly one could release a line under extreme load when it is captured with a jam cleat. I don't want to find out.

 

[RAD88]

Jamb cleat

I wonder how quickly one could release a line under extreme load when it is captured with a jam cleat. I don't want to find out.

Considering the jib sheet is 1st run around the winch ( which holds most of the strain) and then around the jamb cleat - the jamb cleat actually holds perfectly in all wind conditions and is simple and easy to release. I have them and they are great. So much faster and easier than a regular cleat. Never had one release unexpectedly or snag a line when tacking or jibing. They are brilliantly simple and have no moving parts to grease or repair.

 

[kloudie1]

Carlton, Wouldn't use a jam cleat on a halyard, but if you want one, they are available on this site:
http://shop.hunterowners.com/prod.php?8695
or from other marine supply places; http://www.pyacht.com/schaefer-cleats.htm
one real problem with using a jam on a halyard is that the halyard cannot be "Sweated" up tight as you can with a regular cleat..

 

[Benny17441]

The problem with jam cleats on a boat is that the jaming forces generated may overpower the operator's strength to release the sheets in an emergency. In smaller boats it may not be an issue but on larger displacement boats they should not be used.