Welcome LeatherWorker.Net
Since 2005, The Thread Exchange has been serving experienced sewers, craftspeople, and businesses with top quality thread, needles and bobbins. We are known for our huge selection of thread sizes and colors. Most threads are available as small spools, standard 8 and 16 ounce spools, and discounted multi-spool cases.
Our customer service team is available M-F 9-to-5. We answer emails and voicemails by the next business day-usually sooner. Orders received by 3 PM EST normally ship the same business day.
Our "no questions" 30-day refund policy means you can shop with confidence.
Thread and Needles for Leather
Nylon thread is strong, durable, and easy to use making it a favorite for sewing upholstery, leather, and canvas.
We have nylon thread in 200+ colors and these eleven sizes: Size 33 / Tex-30, Size 46 / Tex-45, Size 69 / Tex-70 (largest size for home sewing machines), Size 92 / Tex-90, Size 138 / Tex-135, Size 207 / Tex-210, Size 277 / Tex-227, Size 346 / Tex-350, Size 410 / Tex-415, and Size 554 / Tex-600.
Buy what you need. Most of our nylon threads are available on: small 2 and 4-Ounce spools, standard 8 to 16-Ounce spools, and discounted multi-spool cases.
Visit our Nylon Thread Buying Guide and Thread / Needle Size Charts to learn more.
Polyester thread looks and sews like nylon. It has better UV resistance making it the first choice for sewing outdoor furniture, awnings, banners, tents and canvas.
We have polyester thread in 150+ colors and these ten sizes: Size 46 / Tex-45, Size 69 / Tex-70 (largest size for home sewing machines), Size 92 / Tex-90, Size 138 / Tex-135, Size 207 / Tex-210, Size 277 / Tex-270, Size 346 / Tex-350, Size 415 / Tex-410, and Size 554 / Tex-600.
Buy what you need. Most of our polyester threads are available on: small 2 and 4-Ounce spools, standard 8 to 16-Ounce spools, and discounted multi-spool cases.
Visit our Polyester Thread Buying Guide and Thread / Needle Size Charts to learn more.
Prewound bobbins make sewing easier. Pop a bobbin in your machine and go - no time-consuming bobbin winding. They are precision wound to avoid tension problems and skipped stitches.
Prewound bobbins come in different styles with each suited for different kinds of sewing machines. We carry these bobbin styles: Style A (Class 15) used with most home sewing machines, Style G used with small and mid-sized machines, Style L also used with home sewing machines, Style M used with commercial machines for heavy fabric, canvas and leather, and Style U used with commercial machines for heavyweight fabric, canvas and leather.
Bobbins typically come in boxes of 72 or 144. Our Bobbin 12-Packs let you buy bobbins in smaller quantities. We also have about 100 Half-Price Bobbins; some boxes are battered but the bobbins are just fine.
For more information visit our Bobbin Buying Guide, our Bobbin Style Guide (identify bobbins by comparing to precise bobbin size templates), and our Bobbin Style Reference (bobbin styles for 10,000+ machines).
- Style A (Class 15)
- Style G
- Style L
- Style M
- Style U
- Limited Availability Styles:
- Style 41
- Style 58
- Style D
- Style F
- Style MA
- Style N
- Exclusives
- Bobbin 12-Packs - same bobbins, smaller quantities
- Half-Price Bobbins
- Bobbin Buying Resources
- Bobbin Buying Guide
- Bobbin Style Guide - easily identify a bobbin's style
- Bobbin Style Reference - bobbin styles for 10,000+ machines.
We have over 2,200 kinds of needles mostly from Groz-Beckert including the new Chinese shoe patcher needles
- 130/705 H-L - for sewing leather on home sewing machines
- 135x16 - for single needle lockstitch and walking foot industrial machines
- 794 - for thick leather and other heavyweight materials
Use C. S. Osborne needle kits for hand sewing upholstery, leather, canvas, carpet, fabric, and darning. Needle size gauges use Standard Wire System. A higher gauge number means a thinner needle.
See our Hand Sewing Needle Guide to learn more.
We have a large selection of our nylon and polyester thread on 100-yard tubes for hand sewing. $5.29 each.
Waxing makes thread stiffer, stronger, and more water repellent. We have waxed thread on 70-Yard Tubes in six thicknesses and 30 colors, 24-Yard Coils for hand stitching, and thin Embalmer's thread also used for taxidermy.
See our Waxed Thread Buying Guide to learn more.
- 70-Yard Tubes in 30 colors
- .020 inch (.51 mm)
- .030 inch (.76 mm)
- .035 inch (.89 mm)
- .040 inch (1.02 mm)
- .045 inch (1.14 mm)
- .050 inch (1.27 mm)
- Quarter Size Coils
- .025 inch (.64 mm) - 24 Yards
- .030 inch (.76 mm) - 12 Yards
- Fine Embalmer's Thread (also used for taxidermy)
- 30-Inch Tapered Waxed Cords (24-Cord bundle)
- Beeswax (wax any thread)
Use artificial (also called imitation) sinew for crafts projects that need a strong, flat, colorful thread or cord. These include Native American crafts, basket weaving, dream catchers, leatherwork, beading, gourd crafting, wrapping pine needle rims, and moccasins.
We have artificial sinew in 25 colors on 17-Yard Tubes and 265-Yard Rolls.
See our Artificial Sinew Buying Guide to learn more.
Robison-Anton is our flag ship embroidery thread and is ideal for embroidering leather. We have it in over 400 colors on mini and king spools. All threads use 70 / 10 to 80 / 12 needles.
We carry the full Robison-Anton product line - Polyester, Rayon, J-Metallic, Moonglow, Variegated, and Twister Tweed embroidery threads.
We also have Robison-Anton polyester and rayon color cards at cost.
Visit our Robison-Anton Buying Guide and Conversion Charts for more information.
Machine Needles - Over 2,000 Groz-Beckert and Schmetz selections.
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Find the needles you need in one place.
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Needle to Machine Reference.
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Sequenced needle systems for harder to find needles.
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Thread by needle size.
Accessories - To make sewing easier.
We have a growing selection of notions and accessories that make sewing easier. They include thread cone holders, thread sock. elastic tubing, scissors and shears, tape measures, and tool kits and cutters.
Nylon Thread - Ten Sizes - Over 100 colors in some sizes.
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Strong, durable, and easy to use.
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Great for fabric, leather, canvas and vinyl.
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Use up to size 69 in most home sewing machines.
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Buy what you need - Single small spools, large spools and cases.
Polyester Thread - Nine Sizes - Great for outdoor use.
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Looks and feels like nylon thread with comparable strength, durability, and ease of use.
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UV resistant - Great for fabric, leather, canvas and vinyl.
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Use up to size 69 in most home sewing machines.
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Buy what you need - Single small spools, large spools and cases.
Robison-Anton - The full line of R/A 40-Weight embroidery thread.
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Over 400 colors in polyester, and over 370 colors in rayon.
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King spools and mini-kings.
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Color cards.
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Color conversion charts to match to other brands.
Kevlar (TM) Thread - Withstands temperatures up to 800F.
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Does not melt.
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About 2.5 times stronger than nylon and polyester.
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Low stretch at 2%.
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Buy what you need - Single spools, large and smaller - or cases.
Bobbins - Prewound - Save time with pre-loaded bobbins.
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Full-gross (144), half-gross (72), and packs of 12 for smaller jobs.
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Styles A (Class 15), G, L, M, and U - Other styles on closeout.
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Wide selection of half-price bobbins.
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Find the right bobbin for your machine.
Monofilament Thread - Also called invisible nylon thread.
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Similar texture to fishing line, but thinner.
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Comes in 9 sizes from ultra-thin size .004 to sturdy-size .012.
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Small spools in sizes .005 to .012.
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1.5 Lb. canisters in all sizes - Case quantities available.
Cotton Thread - The full line of Mettler Silk-Finish cotton and Aurifil closeouts.
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Mettler cotton from thinnest to thickest in 60, 50, 40, and 28-weights.
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Aurifil cotton closeouts at 35% off.
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Mettler and Aurifil are made from 100% long staple Egyptian cotton fibers.
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The lower the thread weight number, the thicker the thread.
Sewing and Serger Thread - Spun polyester, poly-core, silk closeout and more.
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Tex 27 Maxi-Lock - Over 90 solid and variegated colors on 3000-Yd spools.
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Excell - Same as Maxi-Lock on 6000-Yd spools - Around 12 colors.
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Maxi-Lock Stretch - High elasticity thread in over 35 colors.
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Closeouts in spun polyester, poly-core silk, and more.
Waxed Thread - For hand sewing. Most machines cannot handle waxed thread. Check owners manual.
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Waxing makes thread stiffer, stronger, and more water repellent.
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Great for leather, canvas, vinyl, and heavy fabrics.
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70-Yd tubes from Maine Thread in 6 sizes - Over 36 colors.
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Closeout - Nylon coils, and waxed polyester-linen tubes.