Large Grommets

I do sail repairs,  mostly sewing type repairs for myself and friends, and I  need to replace the 2″ large grommet in the clew. The largest grommet on your website is 5/8″. I could put on  a large ring and tape it, but a grommet would much quicker. Can you supply a larger grommet? What is the best way to set  a larger grommet, by hand or with a small press?

This is a very good question. The largest grommet Sailrite offers is a #5 grommet with a 5/8″ ID because relatively small grommets can be installed with hammer type die and anvil tools. Larger grommets require significantly more pressure to close than is possible with a hammer. In fact, large grommets typically found at the corners of modern sails are installed with a specialized hydraulic press with up to 30 tons of pressure. If you want the modern large grommet (aka Rutgerson or Inox Rings), visit a local sailmaker to have one installed.

Alternatives to the large grommet:

Traditional Sewn Rings

Before hydraulic presses were available to sailmakers, the standard method used to build a strong grommet into a sail corner was to sew in a large brass ring and press a liner (eyelet) into the whipped ring. The liner would keep the twine (used to sew the ring in place) from chafing with the movement of the sheet attachment or corner pin/shackle. Brass rings are available in up to 1-1/4″ in size. For really large boats and sails, it’s important to cluster groupings of these rings and bind together with lashings of twine to increase strength. The result is a very strong, but labor intensive ring assembly. For Sailrite’s do-it-yourself customers, this task is fairly reasonable depending upon how your time is valued. Die and anvil sets are available for 7/8″ and 1-1/4″ ring and eyelet assemblies.

Webbed Stainless Steel Rings

As you mentioned, the other alternative is to web a D-ring or round shaped stainless steel ring into the sail corner with three or four straps. Loop the straps through the ring and around to the opposite sail sides and sew to the sail corner. Sometimes webbing straps are covered by an outer layer of sailcloth to protect and conceal the webbing from sun damage. Finely made sails will also have a leather boot that covers the base of the ring to protect the corner from chafe as the ring is tossed about.

  1. Teresa said:

    Rowley company has the two inch grommets. I ues them on my drapery

    • Matt Grant said:

      You can certainly find large grommets that are appropriate for light duty applications. But for a sail corner, the 2″ grommet you have pointed out is not nearly strong enough. But given the title of this blog the information is definitely relevant. Thanks for the input! Matt

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: