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.
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The 3 most commonly used sizes, in the order of popularity, are:
Size 20 (12.4mm or 1/2" cap diameter)
Size 16 (10.7mm or 7/16" cap diameter)
Size 14 (9.7mm or 3/8" cap diameter)
Size 22 (14.1mm or 9/16" cap diameter, 7.0mm prong)
Size 24 (14.8mm or 9/16" cap diameter, 7.5mm prong)
I LOVE my KAM snaps!! They are extremely easy to install. I will be placing another order tomorrow for sure.
These are my favorite of all the snaps. They are nice and petite for baby clothing (crotch snaps especially) but are still strong enough to hold on. The quality is great and I got them very quickly. They have held up extremely well in the wash. None have broken on anything I have made.
The size 16s are perfect for unpaper towels! I cab really grab a towel and the snaps easily come apart versus having to port then apart like I do with the 20s. But at the same time, hold together perfectly!
Size 16 snaps in glossy are my favourite! Mine are used for cloth pads- the profile is more discreet than the more common size 20 and they are super easy to unsnap while being secure enough to stay in place. Unlike the size 20 snaps, the socket and stud don't fit perfectly in each other (think of the middle of an ice cream sandwich). This minor cosmetic issue does not affect usability and it is the only aspect getting in the way of making this absolutely perfect. Reply from KAMsnaps: Thanks for your review, Sylvie! As with all our snaps, the #16 parts do fit perfectly with each other. They wouldn't work properly otherwise.
I love the plastic snaps! Super easy to use with the handheld pliers and they look so professional on everything I make! They snap closed tightly but easy enough to take apart. I am very happy with the quality.