Sewalongs, by Colette Patterns

How To Install Magnetic Snaps


Today, we’re going to show you how to install a magnetic snap in your Cooper bag, or any other project that calls for them.

We’ll be showing the male side of the snap, but you can use the same steps to install the female side.


Step 1: Transfer magnetic snap | markings to the right side of flap (C) piece, and check to make sure they fit your snap. Every snap is different, so if you need to move the two markings closer together or further apart, go ahead and do it.


Step 2. Using scissors, cut small slits along the straight lines within the magnetic snap | markings on the right side of one flap (C) piece.


Step 3: Reinforce the slits with a small dab of fabric glue. You can also use a product like Fray Check. This will help prevent the slits from wearing over time.


Step 4: From the right side of your fabric, slide the prongs of the male side of the magnetic snap into the slits. The prongs should poke out on the wrong side of your fabric, as shown above.


Step 5: Place the magnetic snap plates over the snaps on the wrong side.


Step 6: Bend the prongs outwards.


Final view from the right side of flap (C) piece.


Final view from the wrong side of flap (C) piece. This side will be covered up as you assemble the flap.

Now you just need to install the female side on the bag in the same way. Snaps complete!

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The Cooper Sewalong

  1. The Speedy Cooper Sewalong & Contest (19 Comments)
  2. Bag making supplies and resources (42 Comments)
  3. How To Install Magnetic Snaps (6 Comments)
  4. Cooper versions 1 & 2: Assembling the body
  5. How To Create Adjustable Straps
  6. Cooper Version 2: Backpack Straps (5 Comments)
  7. How To Install Jiffy Rivets (2 Comments)
  8. Cooper Version 3: Attaching Satchel Handles
  9. Video: How to square the bottom of your bag (4 Comments)
  10. Finishing the body and flap
  11. Cooper Version 1: Messenger Strap
  12. Lining your Cooper bag (5 Comments)
  13. The Cooper Sewing Contest: Vote For Your Favorites! (30 Comments)
  14. Cooper Sewing Contest: The Winners! (3 Comments)

The Cooper Companion

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How funny, I just bought a few magnets on ebay! This is very useful! Thank you!

I just added magnetic snaps on a purse that I made! I also added fusible fleece on the back side so the edges aren’t poke-y and to add an extra layer of protection.

gabriel ratchet

was just going to say that i’m adding a piece of fusible interfacing to the snap zone for reinforcement. fusible fleece is an even better idea….although i haven’t any to hand in my stash at the moment…


Maybe this fabric is stiff/thick enough one its own, but I also add a small square of interfacing for the prongs to poke through. Even when using cotton duck. Just one less thing to worry about, lol.

Neeno – Sew Me Love |

Awesome! I always wondered how those things are installed!! Thanks for the post!


While that DOES do the trick, it can also be a little weak. The weight of the snap will pull the fabric down more than you really want, and repeated yanking it open (I never said I was light on my belongings….) can easily tear the fabric. I always add interfacing and an additional one or two swatches fabric before closing the snaps. It makes a WORLD of difference to have the additional support behind the magnet when you’re opening the snap. Strangely enough, adding the extra support also seems to balance the weight of the snap across the fabric better. A weird thing, but I’m not going to complain. :)

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