The mystery of snap sizing

You need a strap with a snap installed on it. That should be easy until you call and we ask what size snap, ligne 24 or ligne 20?

First off, how do you even pronounce ligne? That’s easy, it sounds like “line”. Great, but how do you use this ligne thingy? That isn’t so easy unless you happen to be a watch or button maker from the late 18th century. You can read all about it on Wikipedia https://en.wikipedia.org/wiki/Ligne
Now in the US it is defined as 1/40th of an inch.

Getting back to snaps, ligne 24 is the most common size. Boat covers, bag closures, leather working- you see them everywhere. Ligne 20 snaps are sometimes referred to as “baby snaps”. You might see these on clothing but probably not on a strap.

The two sizes are not interchangeable. Tooling to set them is different and with the ligne 24 size, there are many more options. Straps to Go has all the tooling for ligne 24 snaps. If you have a project that requires the smaller size please allow an extra week for us to get the tooling and snaps.

Stainless snap in orange material

Webbing choice will dictate the ease of installing a snap:

  • 549 standard weight polypropylene: easy
  • 560 heavy weight polypropylene: expect some rejects, stainless steel posts would help.
  • 630 lightweight nylon: expect some rejects and some puckering of the webbing may occur.
  • 7400 heavyweight nylon: must punch a hole prior to setting the snap
  • Polyester: must punch a hole prior to setting the snap. On very light weight polyester you might get away with having stainless steel posts but testing would be required.

The labor to install a snap in heavyweight nylon will be twice that of standard weight polypropylene. Without punching a hole, the post of the snap will just bend over.

Need a hole? We have grommets

Webbing and grommets go together like peanut butter and jelly. If you need a hole through a piece of webbing a grommet will prevent it from chafing. They come in all sorts of sizes and while brass is the most common metal used to make grommets, stainless steel is also an option.

Trying to be efficient we use self piercing grommets whenever possible. This eliminates the need to pre-punch a hole through the webbing making the assembly more cost effective. Our semi-automatic setting machine can handle the following sizes-

SizeInside DiameterOutside Diameter
#01/4″9/16″
#15/16″5/8″
#23/8″3/4″

If you need something larger we have to install them manually. Here you can get up to a 13/16″ inside diameter and there are also more material options.

When specifying a grommet you need to be specific. Are you providing us with the grommet size, inside diameter or outside diameter? Recently we had an inquiry where the outside diameter of the grommet was larger than the width of the webbing, that doesn’t work. We also need to know your material preference. Plain brass, stainless steel, brass with a nickel plating and brass with a black oxide plating are the most common. Not all sizes and types are available in every finish.

Grommets can also be installed without the washer as seen in the image above. This is a polypropylene strap that has the loop side of hook & loop sewn to it. We have then placed a grommet without washer into one end of the strap. Why, I am not sure but it does show another option.

If a grommet is overkill we can melt small holes in to polypropylene, nylon and polyester webbing. This technique does not provide any protection to the webbing but there are applications where that is not necessary. 

Give us a call at (253) 627-6000 if you have questions, we are always happy to talk about grommets.

Belt extenders for Block & Co. tip bags

Looking for belt extenders that fit Block & Company tip bags? We can make them.

A customer called looking for these. They had tried ordering some elsewhere only to find that the buckles weren’t the same so they wouldn’t work. The buckle on the tip bag was an ACW CSR 1″ which is something we have in stock. For under $3.00 each our customer now has belt extenders.

Not having been to more than 2 or 3 casino’s in my life, I don’t have a clue how a tip bag is used but I hope the employees need them because they are getting massive tips and need a secure way to transfer them to their bank accounts.

strap extenders

Here are examples of a 12″ and 24″ strap extenders made from #630 black 1″ nylon webbing and ACW’s 1″ CSR buckle. We can make these any length and this webbing comes in many colors.

Cannery gear

We were asked to make a knife sheath and adjustable belt for workers in fish canneries. They needed to be rugged, inexpensive and easy to use.

The sheath is made from our 2″ #673 webbing which is extremely stiff and in commonly used for scuba divers weight belts. A pair of rivets and a bit of sewing and you have a functional sheath.

Every sheath needs a belt and this one needed to be adjustable and easily worn over cannery aprons or waterproof rain gear.

Here we used heavyweight #560 polypropylene webbing in an 1½” width. There are a few inches of elastic webbing to keep it taught without being uncomfortable and a side release buckle to make it easy to put on and take off. Finally a slide keeps the tail end of the belt secure and makes sure it doesn’t decide to loosen on its own accord.

Like the sheath there is minimal labor in producing the belt, helping keep the cost down. Is this something to wear around town? No, but it does fulfill the need if you are working in a cannery.