Comment choisir et poser un fermoir de sac ? Guide complet

A unique bag starts with exceptional accessories!

Discover in this practical guide the different types of bag clasps as well as their installation method in order to bring a perfect finish to your creations! The choice of clasp is the final touch of a bag or a pouch, it can change the style as much as the practical aspect of a bag. When making a bag, we often think about its shape, its material or its color. However, an essential element is sometimes underestimated: the clasp, which can nevertheless make all the difference.

There are different bag clasps for your sewing projects:

  • Magnetic button / Magnetic clasp
  • Twist clasp
  • Schoolbag clasp / TUCK
  • Swivel clasp
  • LOXX clasp
  • Other bag clasps

Not forgetting, snaps, zippers and carabiners!

1. Choosing the right bag clasp: between style and practicality

Let us guide you in choosing the unique accessory that will make all the difference!

The importance of choosing the clasp

It is important to choose a clasp that is suitable for the purpose of the bag or pouch. A bag clasp has two essential roles: it ensures the security of your belongings while contributing to the overall aesthetic of your creation. A bad choice can not only compromise the practicality of the bag, but also its design.

2. A very practical tool

Thanks to this ingenious tool, no more clumsy or long cutter strokes! It ensures clean and precise cuts in your leather, imitation leather, fabric, etc. for installing your claw clasps.

Outil de pose pour fermoirs à griffes - Largeur ajustable - Deco CuirSetting tool for claw clasps, TOP, TUCK - Adjustable width - Deco Cuir

Watch the video ⬇️🎥

3. The different types of clasps and their installation method

The magnetic button / magnetic TOP clasp

Easy to install and use, the magnetic TOP clasp is very popular for handbags and clutches. It offers an elegant and discreet closure because the head of the clasp is generally hidden in the lining (simple magnetic TOP). There are several variants of magnetic clasps: POLO, rivetable, with different heads (round, triangular, rectangular)... Its only drawback: it can lack security if the bag is often handled or loaded.

©La Popeline Factory
POLO magnetic clasp

©Nhenry
POLO magnetic clasp


©Deco Cuir
Rectangular magnetic clasp

©Bjornarok_leather
Magnetic rivet clasp

How to install a “simple” magnetic TOP?

  1. Mark the location: Locate and mark with silver pencil the location of the clasp on the flap and body of the bag.
  2. Make the incisions to insert the metal rods using a cutter or tool TB272.
  3. Attach the front part: insert the part of the clasp that attaches to the flap, place the metal support on the reverse side (flesh side) and fold the metal tabs outwards (to avoid excess thickness) using a ruler.
  4. Repeat the operation for the second part of the magnetic top.
  5. Test the closure: Check that the clasp opens and closes correctly before using the bag or sewing a lining.

Italie 🟢⚪🔴
Fermoir TOP magnétique - ROND - Fermeture aimantée doré luxeFermoir Top magnétique - Fermeture aimantée pour maroquinerie
From
Sale price0,96 €
  • FINISHING: luxury gold Brass Aged brass Nickel plated
  • DIAMETER: 12.5mm 14mm 18mm
Italie 🟢⚪🔴
Top fermoir magnétique - Fermeture aimantée - DoréTop fermoir magnétique - Fermeture aimantée - Montage simple
From
Sale price0,95 €
  • FINISHING: Light gold Brass Aged brass Nickel plated
Italie 🟢⚪🔴
AA016-top-magnetique-carre-1.jpgAA017-topmagnetique-carre-1.jpg
From
Sale price0,89 €
  • FINISHING: Light gold Aged brass Nickel plated
  • DIAMETER: 19 x 19 mm (square)
DCO-REGLET-20CM-Reglet-inox-LARGE-20-cm-DECO-CUIR-1-.jpgDCO-REGLET-20CM-Reglet-inox-LARGE-20-cm-DECO-CUIR-2-.jpg

How to install a "POLO" 17 mm magnetic TOP?

  1. Mark the location: Locate and mark with silver pencil the location of the clasp on the flap and body of the bag.
  2. Drill a 10 mm hole using a punch. Then, screw the head of the magnetic top onto the flap. The head must be placed on a thickness of 3/4 mm.
  3. Attach the second part: make the incisions to insert the metal rods using a cutter or the TB272 tool. Insert the part of the clasp that attaches to the body of the bag, place the metal support on the reverse side (flesh side) and fold the metal tabs outwards (to avoid excess thickness) using a ruler.
  4. Test the closure: Check that the clasp opens and closes correctly before using the bag.

Watch the video ⬇️🎥

TOP magnétique POLO - 17 mm - DORE 02x1200.jpgMagnetic TOP clasp - POLO
From
Sale price3,24 €
  • FINISHING: Light gold Aged brass Nickel-free
  • DIAMETER: 17mm 20mm
TA819-020-Emporte-piece-a-frapper-ROND-1-.jpgTA819-Emporte-piece-a-frapper-ROND-3-.jpg
From
Sale price2,26 €
  • DIAMETER: 2mm 3mm 4mm 5mm 6mm 7mm 8mm 10mm

How to install a magnetic riveting TOP?

  1. Mark the location: Locate and mark with silver pencil the location of the clasp on the flap and body of the bag.
  2. Drill 2 holes of 3 mm using a punch cutter.
  3. Using the installation sets, the handle and the Ertalon plate: place the 2 parts of the clasp to be riveted to a thickness of between 2.5 and 5 mm.
  4. Test the closure: Check that the clasp opens and closes correctly before using the bag or sewing a lining.



> End of installation of the first part <

Italie 🟢⚪🔴
AA193-CF-140-Fermoir-TOP-magnetique-a-riveter-ROND-Canon-de-fusil-14mm-1-.jpgAA1393-CF-fermoir-top-magnetique-a-riveter-Rond-Canon-de-fusil-.jpg
From
Sale price1,66 €
  • DIAMETER: 14mm 18mm
  • FINISHING: gun barrel luxury gold Aged brass Nickel plated
jeu pose pince top à riveter 14mm.jpgjeu-pose-pince-top-a-riveter-18mm-gp.jpg
Sale price17,92 €
  • DIAMETER: 14mm 18mm
France 🔵⚪🔴 Pack économique
Pack-022-Kit-de-pose-Plaque-diam-8mm-manche-a-frapper-PINCE.jpgkit-pose-accessoires-1.jpg
Sale price9,72 €-10% Regular price10,80 €
TA819-020-Emporte-piece-a-frapper-ROND-1-.jpgTA819-Emporte-piece-a-frapper-ROND-3-.jpg
From
Sale price2,26 €
  • DIAMETER: 2mm 3mm 4mm 5mm 6mm 7mm 8mm 10mm

Other magnetic clasps

Fermoir sac carré magnétique 23x23 mm - Doré clairFermeture aimantée - Forme carrée
From
Sale price3,48 €
  • FINISHING: Light gold Aged brass Nickel plated
Fermoir magnétique rond - fermeture pour maroquinerieFermoir rond pour sac en cuir - 30mm - Doré
From
Sale price4,80 €
  • FINISHING: Light gold Aged brass Nickel plated
Fermoir sac triangle magnétique 55x25 mm - Doré clairfermoire-triangle.jpg
From
Sale price4,80 €
  • FINISHING: Light gold Aged brass Nickel plated

Watch the video to see the assembly of the square magnetic clasp ⬇️🎥

The twist clasp

This clasp is often used, it combines aesthetics and security. It brings a chic and sophisticated touch and is ideal for city bags or rigid handbags.

©Kévin RFT

©Deco Cuir

How to install a twist lock?

  1. Mark the location: Locate and mark with silver pencil the location of the clasp on the flap using the back plate (the one that will be screwed to the back of the clasp).
  2. Cut out the rectangle using a cutter and punch the holes using a punch. Then, pass and screw the 2 parts of the head of the clasp. The head should be placed on a thickness of approximately 3 mm.
  3. Attach the second part: make the incisions to insert the metal rods using a cutter or tool TB272. Insert the part of the clasp that attaches to the body of the bag, place the metal support on the reverse side (flesh side) and fold the metal tabs inwards using a ruler.
  4. Test the closure: Check that the clasp opens and closes correctly before using the bag.

Watch the video ⬇️🎥

Outil de coupe à inciser droit - Oka - Deco Cuiroutil-oka-cuir.jpg
From
Sale price7,60 €
  • WIDTH: 2mm 3mm 6mm 8mm 12mm 20mm 25mm
Nouveauté
Fermoir pour sac tourniquet - RECTANGLE 17x27mmRECTANGLE bag clasp 17x27mm
From
Sale price3,55 €
  • FINISHING: Light gold Satin aged brass
Nouveauté
Fermoir tourniquet pour sac -RECTANGLE 18x36mm - Sac en cuir DIY - 2 finitions au choixRECTANGLE bag clasp - 18x36mm
From
Sale price2,76 €
  • FINISHING: Light gold Nickel plated
Fermoir pour sac RECTANGLE - 25x36mm - Deco CuirRECTANGLE bag clasp - 25x36mm
From
Sale price4,42 €
  • FINISHING: Satin aged brass Nickel plated Light gold
TA819-020-Emporte-piece-a-frapper-ROND-1-.jpgTA819-Emporte-piece-a-frapper-ROND-3-.jpg
From
Sale price2,26 €
  • DIAMETER: 2mm 3mm 4mm 5mm 6mm 7mm 8mm 10mm

Other forms of twist clasps

We love this little square twist clasp that is out of the ordinary (ref. AA426).

Watch the video ⬇️🎥

Nouveauté
Fermoirs tourniquets pour sac - CARRÉS - 19x19mmSQUARE bag clasp - 19x19mm
From
Sale price2,12 €
  • FINISHING: Light gold Nickel plated
Nouveauté
Fermoir pour sac OVALE - 17x24mm - Doré clairOVAL bag clasp - 17x24mm
Sale price3,92 €
  • FINISHING: Light gold
Fermoir tourniquet - NICKELÉ - 40x18 mm - Deco CuirTurnstile clasp - NICKEL PLATED - 40x18 mm
Sale price7,24 €
Nouveauté
Fermoir triangle 3 tourniquets pour sac - 76x68mm - Finition au choixLarge triangle bag clasp with 3 turnstiles - 76x68mm
From
Sale price9,90 €
  • FINISHING: Light gold Aged brass Nickel plated

The schoolbag clasp

This sturdy clasp is often used on business bags, briefcases and small pouches. It ensures a secure closure and a classic design, perfect for a timeless style.

©C Serra
©Laurence's workshop
©Steam Lilith Couture

©Ollivo Julie

How to install a schoolbag clasp?

  1. Mark the locations: trace the location of the clasp on the flap and on the base of the bag. Pay attention to the thickness of the flap to place the head of the clasp (otherwise add a reinforcement or a tab).
  2. Drill 2 holes of 3 mm using a punch cutter.
  3. Attach the metal plate: insert the back plate of the clasp inside the bag and secure it by folding the metal tabs inwards.
  4. Attach the second part: make the incisions to insert the metal tabs using a cutter or tool TB272. Insert the part of the clasp that attaches to the body of the bag, place the metal support on the reverse side (flesh side) and fold the metal tabs inwards using a ruler.
  5. Test the closure: check that the clasp works well and that it holds the bag closed correctly.

Watch the videos ⬇️🎥

For this second clasp, the head is fixed using two screws. Use a round awl to pre-pierce the leather before screwing (the screw will anchor itself in the material, we do not recommend piercing the leather before screwing).

AA088-AV-TUCK-fermeture-de-cartable-22x30mm.jpgTUCK - satchel closure - 23x30mm
From
Sale price0,90 €
  • FINISHING: Aged silver gun barrel Light gold Brass Aged brass Nickel plated Black old copper
AA228-LV-TUCK-fermeture-de-cartable-15x27mm-Laiton-vieilli-1-2-.jpgTUCK - Pouch Closure - 15x27mm
From
Sale price4,20 €
  • FINISHING: Aged brass Nickel plated
Nouveauté
TUCK - Fermeture de cartable 38x43mm - NickeléTUCK - Schoolbag closure 38x43mm
Sale price3,19 €
  • FINISHING: Nickel plated
AA121-NK-TUCK-Fermeture-de-cartable-23x40mm-1-.jpgTUCK - Schoolbag closure - 20x36mm
From
Sale price4,75 €
  • FINISHING: Aged brass Nickel plated
Nouveauté
TUCK - Fermoir de cartable - 21x31mmTUCK - Schoolbag closure - 21x31mm
From
Sale price3,18 €
  • FINISHING: Light gold Nickel plated
Nouveauté
TUCK - Fermoir de cartable - 26x31mmTUCK - Schoolbag closure - 26x31mm
From
Sale price2,51 €
  • FINISHING: Light gold Nickel plated

The swivel clasp

This type of clasp is worth knowing, it can bring security and authenticity to your bag.

©Arnaud T
©The Lights of Noelle

How to install a swivel clasp for a bag?

  1. Mark the locations: trace the location of the clasp on the flap and on the base of the bag (position of the 4 holes).
  2. Drill 4 holes of 4 mm using a punch cutter.
  3. Using the installation kits, the handle and the Ertalon plate: install the 4 single or double cap T3 rivets.
  4. Test the closure: check that the clasp works well and that it holds the bag closed correctly.

Watch the video ⬇️🎥

    Fermoirs pivotants pour sac - 36x42mm - Plusieurs finitions disponiblesSwivel clasp for bag - 36x42mm
    From
    Sale price2,46 €
    • FINISHING: Aged silver gun barrel Light gold Aged brass Nickel plated Nickel-free old copper
    Plusieurs finitions Laiton
    Lot de rivets moyens en laiton (T3) - Argent antiqueSet of medium brass rivets (T3)
    From
    Sale price2,40 €
    • FINISHING: Antique silver Gun barrel Brass Aged brass Nickel plated old copper
    • CONDITIONING: Per 20 Per 100
    Fermoir pivotant à droite - Nickelé - 39x45 mm - Deco CuirSwivel clasp on the right - Nickel-plated - 39x45 mm
    Plusieurs finitions Laiton
    Rivet double calotte T3 en laiton finition argent antiquerivets-double-calotte-en-laiton-argent-vieilli-2-copie.jpg
    From
    Sale price3,00 €
    • FINISHING: Antique silver Gun barrel luxury gold Brass Aged brass Nickel plated old copper
    • CONDITIONING: Per 20 Per 100
    France 🔵⚪🔴 Pack économique
    Pack-022-Kit-de-pose-Plaque-diam-8mm-manche-a-frapper-PINCE.jpgkit-pose-accessoires-1.jpg
    Sale price9,72 €-10% Regular price10,80 €
    France 🔵⚪🔴
    Jeu de pose PINCE - Pour RIVETS T2 Simple calotteJeu de pose PINCE - Pour RIVETS Simple calotte
    Sale price9,95 €
    • SIZE: T2 T3 T4 T6
    France 🔵⚪🔴
    Jeu de pose PINCE - Pour RIVETS T1 Double calotteJeu de pose PINCE - Pour RIVETS Double calotte
    Sale price9,95 €
    • SIZE: T1 T2 T3 T4 T6
    TA819-020-Emporte-piece-a-frapper-ROND-1-.jpgTA819-Emporte-piece-a-frapper-ROND-3-.jpg
    From
    Sale price2,26 €
    • DIAMETER: 2mm 3mm 4mm 5mm 6mm 7mm 8mm 10mm

    The LOXX clasp

    This type of closure, once engaged, has a very high resistance to tearing. It therefore offers great security to your creations. The LOXX clasp is generally used to attach guitar straps to the instrument but it can also bring originality to your bags.

    ©Fabrice Richez
    ©James Berry

    How to install a LOXX self-locking closure?

    1. Mark the locations: Trace the location of the clasp on the flap and on the base of the bag.
    2. Drill 2 holes of ⌀10 mm using a punch cutter.
    3. Screw the first part of the clasp. Use the LOXX key to ensure a good tightening.
    4. Place and screw the second part of the clasp.
    5. Test the closure: check that the clasp works well and that it holds the bag closed correctly.

    Watch the video ⬇️🎥

    clé pour fermeture autobloquante 01.jpgloxx-fermoir-sac.jpg
    Fermeture autobloquante LOXX - DORE 505 - 02x1200.jpgloxx-fermoir-sac3.jpg
    From
    Sale price4,16 €
    • FINISHING: luxury gold Brass Aged brass Nickel plated Matte Black old copper
    fermeture-autobloquante-tete-victoria-laiton-vieilli-225-02-GP.jpgpartage-creation-client-120.jpg
    Fermeture autobloquante LOXX - STRASS 501 - 02x600.jpgFermeture autobloquante LOXX - STRASS 501 - 01x600.jpg

    Other bag clasps

    We offer more than 80 references of bag clasps on our site www.decocuir.com

    Nouveauté
    Fermoir poussoir  pour sac - 35x35mmBag clasp - 35x35mm
    From
    Sale price6,19 €
    • FINISHING: Light gold Nickel plated
    1694-Fermoir-pour-sac-CINCH-1-.jpg1694-Fermoir-pour-sac-CINCH-3-Copie.jpg
    From
    Sale price4,32 €
    • FINISHING: gun barrel Brass Aged brass Nickel plated old nickel old copper Stainless steel
    • WIDTH: 19mm 25mm 32mm
    TL_1314_11_1fermoirnautiquetandyleather1200.jpgTL_1314_11_2fermoirnautiquetandyleather1200.jpg
    Sale price4,07 €
    • FINISHING: Aged brass old nickel

    Another favorite is this pretty bag clasp (ref. AA425): the two parts of the clasp fit into each other. It opens by pressing on the bottom part and pulling on the top part.

    Watch the video ⬇️🎥

    Other styles of bag closures

    The snap button

    The essential snap button! Very popular for wallets and purses, it also allows a quick, discreet and secure closure for your handbags.

    ©Clara F Bags
    ©CLM Creation
    ©Landerneau by MB

    ©Karine

    The zipper / zip

    This is one of the safest systems. The closure prevents objects from falling out of the bag and protects its contents from prying eyes. It is perfect for travel bags, backpacks and everyday bags.

    ©Vanessa De Almeida
    ©Cat - Hat

    The carabiner

    Very practical, it allows a quick opening while guaranteeing a good hold. It is often used for shoulder bags or backpacks.

    ©Deco Cuir
    ©VRSL Material

    The pin buckle / belt buckle

    Bringing a vintage and elegant look, this closure is very popular for leather bags and satchels. However, it requires a little more handling when opening and closing

    ©Bjornarok_leather
    ©Stella's sewing

    4. How to choose the ideal clasp for your sewing project?

    Depending on the use of the bag

    • For an everyday bag: choose a zipper or magnetic button for a good balance between security and practicality.
    • For a clutch or evening bag: the twist or magnetic clasp adds a refined touch.
    • For a travel bag or backpack: the zipper remains the safest choice.

    ⚠️ Also pay attention to the choice of material for your clasp: brass, zamac, steel, copper, aluminum... it is important if you want it to withstand time and use! Most of our clasps are made of ZAMAC (non-ferrous alloy).

    Depending on the design/style

    The clasp contributes greatly to the aesthetics of the bag. A discreet magnetic button will suit a minimalist design, while a twist clasp or metal buckle will give a more sophisticated side.

    In conclusion

    Choosing a bag clasp should not be taken lightly. Take the time to choose it carefully! Depending on the use and the desired style, it is possible to opt for various closures that will enhance your creation. Give character to your future sewing projects!

    The perfect finishing touch for your leather goods creations.

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