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Bobbin For Singer #31-15, 331K

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$.43 - $.48
{{resource("/ProductPage/Labels/List")}} $.80

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Bobbins for professionals.

Change thread fast with these metal bobbins. Fits Singer models 31-15 and 331K.

Features

  • Fits select machines
  • Metal
  • Features a slot

Product Specifications

Brand: WAWAK
Units: Each
Material: Metal

Plastic Bobbins vs. Metal Bobbins

plastic bobbins


Plastic Bobbins

Plastic Bobbins are lightweight and convenient for fast sewing. Plastic bobbins should be used with a bobbin case created for plastic bobbins; be sure to check your sewing machine’s manual to find which material is best suited for your machine. For best results, avoid switching between metal and plastic bobbins to maintain consistent thread tension.

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metal bobbins


Metal Bobbins

Metal Bobbins and Cases are durable and long lasting. For best results, a metal bobbin should be used with a metal bobbin case—be sure to check your sewing machine’s manual to find out which bobbin material is best suited for your machine. Avoid switching between plastic and metal bobbins to maintain consistent thread tension.

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bobbin styles & sizing

Bobbin Styles & Sizing

There are many different styles of bobbins and bobbin cases in use on sewing machines today, all slightly different in shape, size, and weight. Unfortunately, different classes of sewing machine bobbins are not interchangeable, so be sure to use a bobbin and case in the same class or style as your machine requires. A few common styles of thread bobbins and cases include Class 15, L Style, and M Style. Different sewing machines require different bobbins even within the same brand of sewing machine, so be sure to consult your owner’s manual to know which bobbin is applicable to your machine, or feel free contact us with questions.

Do these fit Brother PQ1500SL?
VICTORIA W.
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A:
Hi Victoria, please use the BOB-2 bobbin for that machine.
Lisa P.
  • logologo Staff
Which bobbin is for a Singer Slant o matic circa 1965 model 401?
Dianne A.
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A:
Thank you for your question. Looks like it uses a Class 66 bobbin. Stock #: BOB21.
Joseph D.
  • logologo Staff
Do you have a bobbin that will work with the Janome HD9?
Stacy P.
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A:
The correct bobbin for this machine is the Stock #: BOB2.
Joseph D.
  • logologo Staff
This bobbin comes up for my Sailrite LSZ-1 but it doesn't have the holes in it that a standard class 15 bobbin does. Will this fit?
LORA W.
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Both this and the Stock #: BOB8 will fit where a Class 15 bobbin will fit.
Joseph D.
  • logologo Staff
Would this fit a Singer 20U?
CREATIVE C.
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A:
We suggest the BOB2 for the Singer 20U.
Lisa P.
  • logologo Staff
Will these fit Singer Patchwork 7285Q? It takes a class 15J bobbin.
LARA T.
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A:
Yes, these should work for this machine. We also carry 15J plastic bobbins if needed, Stock #: BOB1002.
Joseph D.
  • logologo Staff
Does it fit Juki 8700?
Anonymous
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A:
No, use the BOB2, BOB4, or BOB19.
Lisa P.
  • logologo Staff
Which of your metal bobbins will fit a Janome 6700p?
GINGER B.
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A:
The BOB-2 will work.
Lisa P.
  • logologo Staff

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