Combo Snap Rivet Grommet Press Bundle (KX8J Pro-Handheld)

Size Guide
Choosing the Right Plastic Snap Size

Snaps are not one-size-fits-all.  If your snaps are too long for your fabric, they won't close properly.  If they're too short, they'll fall off. For this reason, it's important to choose the proper size / length for your material.

Which size works best for you will depend on a number of variables, such as the fabric you are using, its density and compression levels, how hard you are able to press, and your own personal preference.  For these reasons, we are unable to provide specific size recommendations for every scenario. 

Not sure? Try the variety size sampler kit which includes our most popular sizes / lengths.

------>>>>>> Download a printable pdf file showing each snap in its true-to-life size.

Plastic KAM Snaps Fasteners Size Comparison Chart - What Size Snaps Do I Have?

 

The 3 most commonly used sizes, in the order of popularity, are:

    1. Size 20 regular length
    2. Size 20 extra long (for thicker material)
    3. Size 16 regular length (for thinner material)

Size 20 (12.4mm or 1/2" cap diameter)

  • Size 20 Regular Length (5.6mm prong) is often used for general applications including baby diapers, regular clothing, and household projects.   This is the most popular size of plastic snaps and is a good size to start with for most projects since most commonly used fabric fall within the desired thickness for this length. Days for Girls menstrual pads are made with this size. This size has a strong grip so if you're working with more delicate fabric proned to tearing, consider size 16.

    ------>>>>>> Click here for sizing tips for baby & toddler clothing.
  • Size 20 Extra Long (6.2mm prong) is recommended for slightly thicker & denser material like double layers of standard marine vinyl for key fobs, medium weight leather, and chinese prefold diapers. (Some versions of these material may be so thick that they'll need larger/longer snaps.)
  • Size 20 Extra Short (4.6mm prong) is good for thinner material where you still want a good, strong grip such as baby diapers made with just 1-2 layers of PUL.

Size 16 (10.7mm or 7/16" cap diameter)

  • Size 16 Regular Length (4.6mm prong) is most commonly used for  projects that require a looser grip, such as doll clothes or reinforced stretch jersey.
  • Size 16 Extra Long is available in lengths ranging from 5.2mm - 7.2mm long for thicker material.

Size 14 (9.7mm or 3/8" cap diameter)

  • Size 14 Regular Length (3.5mm prong) is extremely short and should only be used on very thin material, usually single layers. 
  • Size 14 Extra Long (5.0mm prong) for situations when the regular length is not long enough such as when you have more layers or thickness.

Size 22 (14.1mm or 9/16" cap diameter, 7.0mm prong)

  • A larger snap which can be used in similar situations as size 20 long-prong, or in situations where size 20 long-prong is still a little too short.

Size 24 (14.8mm or 9/16" cap diameter, 7.5mm prong)

  • Our largest, strongest snap which should only be used in very heavy duty applications with thicker material such as canvas tote bags, nylon webbing, dense leather and thick jackets. Because the grip is so strong, it can tear through more commonly used fabric.

  • The Combo press bundle includes everything you need
    to get started with our most popular fasteners.
    • KX8J professional multi-function handheld press.
      • 50 white regular length plastic snaps & KX no-change dies** in size 20 (1/2"). See how it works.
      • 50 silver open-ring metal snaps & KX open-ring dies in size 16 (7/16"). See how it works.
      • 50 gunmetal grommets & KX grommet dies with 5mm (3/16") internal hole. See how it works.
      • 50 silver rivets & KX rivet dies with 8mm (5/16") caps. See how it works.
      • Dies for size 14/16 and 22/24 plastic snaps.

      Optional but recommended:
      • KX dies for quick plastic snap removal without damage to fabric. (add from drop-down menu above) See how it works.
      • Hand awl & KX awl dies to poke holes in fabric for snap placement. (add from drop-down menu above)
      • KX hole punch dies to cut out holes for placement of fasteners

      Additional dies can be purchased separately
      for snaps, rivets, grommets, key fob hardware, and cover buttons sold on our site. Our tools, dies, and fasteners are intended to be used together and may not be compatible with products sold elsewhere.

    • Presses and dies are heavy, industrial equipment and may have scratches, flaked paint, rust, oil or other cosmetic imperfections that will not hinder their function. Remove any remaining oil on dies by attaching several snaps to scrap fabric. Returns or exchanges cannot be accepted unless a defect affects function.

      Warning: Operate away from and keep out of reach of children. Never release handle until spring is fully unloaded. Loose fasteners are a choking hazard - small parts. Not for children under 3 years.
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