Due to the Christmas and New Year’s Day holidays, orders placed after 1:00PM ET on Friday, 12/22/2017 will be shipped on Tuesday, 12/26/2017. Orders placed after 1:00PM EST on Friday, 12/29/2017 will be shipped on Tuesday, 1/2/2018.

UPS and USPS do not guarantee delivery times through the end of the year. Some delays are not covered by their delivery guarantees, including an extra day in ground shipping and later delivery for overnight services.
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All orders placed & paid online by 1PM ET (M-F) will be shipped the same day!
SW-M
SW-M
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  • Description
  • Technical
  • Downloads
  • Video
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 aren't frequently washed, such as purses, wool or leather items, the strength of these magnets is slightly better without a plastic cover.  For items that are frequently washed, our SWP-M is the same magnet with a protective 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.  Aim for a pull force between 1 and 3 pounds for a nice feel, though the desired strength does depend on the application.  This magnet is great for a total material thickness of 1/32" to 1/8".

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 3.97 Strong pull
Denim/jeans 0.028 2.24 Firm pull
Canvas 0.04 1.64 Good pull
Leather, 1/16" thick 0.0625 1.02 Good pull
Leather, 1/8" thick 0.125 0.4 Gentle 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: $2.78
 
Quantity:
 Add to cart
 
Price ea.Qty
$2.78 1-4
$2.72 5-9
$2.66 10-24
$2.59 25-49
$2.53 50-99
$2.47 100-249
$2.41 250-499
$2.34 500-999
$2.28 1000-2499
$2.22 2500-4999
For pricing at higher order quantities,
please email us!
December
Specials

TIN1
10% Off
Our Popular Deluxe Magnet Kit

Get 'em on sale now as a holiday gift for your favorite magnet enthusiast.
Shop early and save!

XMAS1
10% Off
XMAS1 & XMAS2
Magnetic Thumbtacks

WPH-LG
10% Off
WPH-LG

Magnetic Hook
Great for holding a wreath to a steel door!


Order by phone:
1-888-SHOP-KJM
(1-888-746-7556)
or 215-766-8055

Order online for
fastest shipping!


No Minimum Order!


K&J Magnetics, Inc.
Your online source for incredibly powerful neodymium magnets