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These great Sewing Magnets are designed especially for sewing into fabrics.  Great for purses, clasps, and many other magnetic attachments for clothing and other textiles.  These magnets also work great as magnetic clasps in binders, folders and other printed materials.  Sewing magnets are sold in matched pairs.  An order quantity of 1 gets you two magnets.

For items that are frequently washed, we recommend the plastic cover included on this magnet, which helps protect it from moisture.  For items that are infrequently washed, our SW-L is the same magnet without the plastic cover.  Machine wash cold, dry on low heat.

Choose your size based on the thickness of all material layers between the magnets in your application.  A pull force between 1 and 3 pounds is a good target, though the desired strength does depend on the application.  This magnet is great for a total material thickness of 1/16" to 1/4".

The table below shows the expected strength when used with a variety of materials.  The Pull Force assumes the magnets are separated by two layers of the fabric.

Material Fabric thickness, single layer [in] Pull Force [lb] Comments
Cotton T-shirt 0.012 5.24 Too strong!
Denim/jeans 0.028 3.27 Strong pull
Canvas 0.04 2.44 Firm pull
Leather, 1/16" thick 0.0625 1.53 Good pull
Leather, 1/8" thick 0.125 0.54 Light pull

Case3 Pull Force, Case 3 vs. distance: Magnet to Magnet.
Magnetic Field Click here for a depiction of the magnetic field.

Drawing Click here to download a PDF drawing of this product.
Cert Click here to download a Certificate of Compliance for this product.
RoHS Click here to download a RoHS Statement of Compliance for this product.
MSDS Click here to download a Material Safety Data Sheet (MSDS) for this product.
Origin Click here to download a Certificate of Origin for this product.
STEP Click here to download a .STEP file (3D model).
IGS Click here to download an .IGS file (3D model).

   Download the free Adobe Acrobat Reader

 Price: $4.69
 Add to cart
Price ea.Qty
$4.69 1-4
$4.59 5-9
$4.48 10-24
$4.38 25-49
$4.27 50-99
$4.17 100-249
$4.06 250-499
$3.96 500-999
$3.85 1000-2499
$3.75 2500-4999
For pricing at higher order quantities,
please email us!
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K&J Magnetics, Inc.
Your online source for incredibly powerful neodymium magnets