Best thread for stitching and sewing leather?

It has been recommended by many leather experts to use a strong thread for stitching or sewing leather. Would someone please inform me of the right or best thread to use? Thank you very much!

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Ninzerbean5 years ago
I would use a waxed linen thread, waxing will make it slide easier. Just be sure that you can't break it by pulling really hard on it, if you can then don't use it.
I've also seen used (in conjunction) a punch with multiple dies to pre-cut the pinholes and form the thread troughs -- seems important to reduce friction as you work.
Pwethior12 years ago

I have a similar question. My hat has a sweatband and i think it's a leather band but i'm not sure. My question is: What kind of thread should i use to sew the sweatband and hat back together? The sweatband is coming loose and i want to fix it without using glue, so i need to know what thread to use. Thanks

You can buy thread specifically designed for leather by buying from the Leathermachine Company.

Brookeasche3 years ago

what kind of string would I use for making horse tack like bridles and reins and all that kinda stuff

Brookeasche3 years ago

what kind of string would I use for making horse tack like bridles and reins and all that kinda stuff

Burf5 years ago
Truthfully, it doesn't make a whole lot of difference, it just depends on what type of stitching you're doing.
My choice for general purpose; I've found that Duel Duty (37% cotton/63% polyester) thread works well for its strength, non-fraying and the fact it doesn't tend to enlarge the holes.
Nylon frays easily and enlarges the holes but is strong.
Silk is strong and stitches well but it stretches easily.
Linen thread is strong but bulky and enlarges the holes.
I have even used dental floss on a few projects where I wanted an extremely strong thread.
Your best bet is to evaluate what qualities you need or want for a particular project and use whatever closely matches that.

I work on leather products and use heavy duty industrial machines and several thing must be considered when choosing thread. If you have a leather product you want to avoid cotton it will rot over time and the seams will fail. You don't want thread that can stretch and it must pass through the needle with ease. If your item will be exposed to a lot of light you need a UV protected thread. Thread weight is also a consideration, and needle size. I normally use a size 16-18 leather needles which are perfect for medium duty seams. Some of the other needles leave to large a hole and is like pushing a nail thought the materials and has a very poor visual appearance. Great for shoe soles but not for worn garments.

I use bonded nylon #69 with a tensile strength of 11 pounds and its very strong and passes through needles with out problems. If you use none bonded can present problems in leather and more difficult to pass through the needle. When working with leather I consider the thread to be the last thing I want to worry about. You have one chance to do it right in leather so use the best thread you can get. Leather is expensive and thread is cheap in comparison.

I use a medium weight thread and don't try to break it with your hand it will cut you before it breaks.

If you need thread you can contact Tandy Leather if there close or on line also has good selection of weights of bonded nylon and other types in many different colors.

anniebee4 years ago
Guterman make a thread for upholstery which is good for using on a sewing machine for sewing leather. Put some sticky tape on the presser foot to help it 'glide' over the leather & buy leather point needles for your machine- you will get better results. A teflon foot is ideal but the tape is ok for small jobs.
rickharris5 years ago
Although you have got an answer you like try this - Go to a horse chandler and buy some of the thread they use to tie up a horses tail for competitive riding.

It is a polyester thread that is very very strong and thicker - You can wax it with candle wax or bees wax.

I use it for all sorts of things.
blkhawk (author)  rickharris5 years ago
Thank you Mr. Harris. I wish I could award everyone a Best Answer.
I've used quilting thread with success, but I second the suggestion on waxing the string. Doesn't take much, but it made my project worlds easier.

Good luck!
rimar20005 years ago
Nylon thread? That serves for fishing. It is VERY STRONG.
Vyger5 years ago
I used braided nylon fishing line for making repairs to leather horse tack. (Saddles, bridals, etc) It is flexible like thread because it's not a mono filament and is super strong. It also does not rot so it lasts indefinitely.