For most hand sewing, the best all-round thread is a 40/2 spun polyester (roughly Tex 27-30): strong, colorfast, low-shrink and smooth enough to pull through a needle without much tangling.
This guide sorts out hand sewing thread types, fiber choices, size and numbering systems, the best options for specific jobs, how hand and machine threads differ, and where MH’s thread range fits.
Key Takeaways
40/2 spun polyester (about Tex 27-30) is the default hand sewing thread for garments, hems, repairs and buttons on light to mid-weight fabric.
Thread size runs backwards in count systems: 60/3 is finer than 40/2, which is finer than 20/2. Tex runs forwards, so a higher Tex is a thicker thread.
Glazed or waxed finishes cut tangling and fraying in hand stitching, which is why hand quilting and leather threads are usually treated.
Match thread fiber to fabric and end use: cotton on cotton, polyester or core-spun on synthetics and stretch, bonded nylon or polyester on heavy, stressed seams.
What Makes a Thread Good for Hand Sewing?
A hand sewing thread has to do things a machine thread doesn't. It's pulled through the fabric dozens of times by hand at short lengths, so it needs to resist tangling, knotting and fraying at the needle eye more than it needs to survive high-speed friction. Machine threads are built for the opposite: heat from the needle, tension through guides and thousands of stitches a minute.
Four properties matter most when you choose hand sewing thread:
Twist balance. A thread with uneven twist kinks and snarls when it's pulled through by hand. Well-balanced 2-ply and 3-ply threads lie flat.
Surface finish. Glazed (resin-coated) and waxed threads slide through fabric and hold their twist. Soft-finish threads feel nicer but tangle more.
Strength for the seam. A hem needs little; a coat button or a car-seat repair needs a lot. Size and fiber set the breaking strength.
Color and shrink behavior. The thread has to stay matched to the fabric after washing, so colorfastness and low shrinkage matter as much as feel.
So is there a single "hand sewing thread"? Not really. Most all-purpose sewing threads work for both hand and machine stitching. What changes is which fiber, size and finish suits the job in front of you.
Which Thread Fiber Is Best for Hand Sewing?
Spun polyester is the safe default, but each fiber has a job it does better than the others. The table compares the fibers used for hand sewing on the specs that decide a purchase.
Thread fiber | Common sizes | Strength | Shrink & heat | Finish & feel | Best hand sewing uses |
|---|---|---|---|---|---|
Spun polyester | 40/2, 30/3, 20/2 | High | Very low shrink; moderate heat tolerance | Matte, slight fuzz; soft or glazed | General garment sewing, hems, repairs, buttons |
Core-spun (poly/poly or poly/cotton) | 40/2, 30/2 equivalents | Very high for its size | Very low shrink | Smooth, even | Tailoring, stretch fabrics, seams that take strain |
Mercerized cotton | 50wt, 40wt, 20/2 | Medium | Can shrink slightly; good heat tolerance | Soft luster, low stretch | Cotton garments, heirloom sewing, hand quilting (glazed) |
Silk | Fine (about 50wt to 100wt), buttonhole twist | Medium-high, with good elasticity | Low shrink; avoid high heat | Lustrous, very smooth | Tailoring, basting that won’t mark, fine finishing, silk and wool |
Linen (often waxed) | Medium to heavy | High, low stretch | Low shrink | Matte, textured | Leather, bookbinding, heavy natural fabrics |
Bonded nylon | 210D/3 (about Tex 70) and heavier | Very high, abrasion resistant | Low shrink; lower heat tolerance | Bonded smooth coating, resists fraying | Upholstery, canvas, bags, footwear, heavy buttons |
Monofilament (nylon or polyester) | Around 0.1-0.2 mm | Medium | Melts under a hot iron | Clear or smoke, near-invisible | Invisible hems, appliqué, multi-color fabric |
Sizes and properties are typical commercial ranges; twist, finish and dyeing change any individual thread.
How Do Thread Sizes Work for Hand Sewing?
Count/ply (e.g. 40/2, 30/3, 20/2): the first number is the yarn count of each ply, the second is the number of plies. A higher count means a finer ply, so 40/2 is finer than 20/2.
Weight (wt), e.g. 50wt, 40wt, 12wt: common for cotton and quilting threads. It's roughly the kilometers of thread per kilogram, so a higher wt is finer; for example, 50wt is finer than 40wt.
Tex: grams per 1,000 meters of thread. It's the most direct system: higher Tex means a heavier, stronger thread.
Denier/ply (e.g. 210D/3): used for filament threads like bonded nylon. 210D/3 is three plies of 210-denier yarn, about Tex 70.
Thread label | Approx. Tex | Relative thickness | Typical hand sewing jobs |
|---|---|---|---|
60/3 spun polyester or 60wt | ~16-20 | Fine | Silks, chiffon, lingerie, invisible hand hems |
50wt cotton | ~20 | Fine to medium | Cotton shirting, hand piecing, heirloom sewing |
40/2 spun polyester | ~27-30 | Medium (all-purpose) | Garments, hems, repairs, shirt and blouse buttons |
40wt cotton (often glazed) | ~25-30 | Medium | Hand quilting, cotton garments |
30/3 or 20/2 spun polyester | ~40-60 | Medium-heavy | Denim, workwear, coat buttons, bar tacks |
210D/3 bonded nylon | ~70 | Heavy | Upholstery, canvas, bags, sail and tent repair |
12wt cotton or heavier bonded threads | ~80+ | Very heavy | Decorative topstitching, leather, saddle stitching |
Conversions are approximate; Tex depends on fiber and twist. Confirm the Tex or ticket number on the spool or spec sheet when matching orders.
For a deeper look at count and ticket numbers, see our guide to sewing thread count.
What Is the Best Hand Sewing Thread for Each Job?
Different jobs reward different threads. This is how the fibers and sizes above map to the most common hand sewing work in apparel, home textiles and repairs.
Garment Sewing, Hemming and Repairs
A 40/2 spun polyester thread is the standard choice. It's a good choice for everyday garment sewing and repairs: strong enough for seams, fine enough to disappear in a slip-stitched hem, and, for light- to mid-weight garment work, able to sew almost anything. It doesn't shrink after washing, is durable, does not break easily, and is suitable for many common garment fabrics. On polyester fabrics, such as mini matt or a super poly tracksuit fabric, polyester thread also matches the fabric's dyeing and wash behavior. For delicate fabrics, drop to 60/3 or a fine silk.
Buttons, Hooks and Bar Tacks
Buttons take repeated pulling, so they need more strength than a seam. Shirt buttons are fine with 40/2. Coat, jacket and workwear buttons are better with a heavier 20/2 spun polyester or 30/3 spun polyester, often doubled through the needle and finished with a thread shank; heavier fabrics or high-stress areas need extra strong thread. That is especially true for denim workwear, which requires extra strong thread because those seams and attachments take more stress.
Hand Quilting
Hand quilting thread is usually a glazed cotton around 40wt, used to stitch a quilt through the top, batting, and backing. The glaze stiffens the thread, keeps it from tangling as it's pulled through three layers, and protects it from abrasion. Use it only for hand stitching; the glaze can build up in machine tension discs. Invisible thread can also work for appliqué when you want stitches to disappear. A 100% cotton sewing thread is a suitable match for cotton fabric in patchwork and hand piecing because both tend to shrink and wear similarly in washing.
Upholstery, Canvas and Bags
Heavy fabrics and stressed seams need a bonded filament thread, and these materials often require extra strong thread because the seams must withstand abrasion and wear on the finished project. A 210D/3 bonded nylon thread (about Tex 70) is a durable upholstery thread option for upholstery, canvas, and bags, and the bonding keeps the plies from separating as the needle passes through dense fabric under stress. For outdoor items exposed to sunlight, bonded polyester holds up better to UV than nylon.
Leather and Saddle Stitching
Hand-stitched leather uses linen thread or waxed polyester, and it’s primarily used to hand sew with two needles in a saddle stitch. A quick tip: waxing linen thread helps prevent fraying or shredding in hand stitching. The wax locks each stitch in place, so one broken stitch doesn't unravel the seam, and it also suits historical costumes or period work with natural fibers.
Hand Embroidery
Hand embroidery uses stranded cotton embroidery floss made of six separable strands, so you can use a thinner thread or fuller coverage depending on the stitching, or pearl cotton, both mercerized for sheen; thread type matters here because different embroidery applications call for different fibers and finishes. See MH's cotton threads and embroidery threads for the ranges. Linen thread is also used for some hand embroidery work, especially traditional styles.
Invisible Hems and Appliqué
Monofilament nylon or polyester (about 0.1 mm) is an invisible thread that is semi-transparent, so it nearly disappears on multi-colored or printed fabric; it is commonly available in clear and smoky colors. It's stiffer than spun thread and melts under a hot iron, so press with low heat or a cloth. It is also useful for decoration or attaching embellishments when nearly hidden stitches are wanted.
Is Hand Sewing Thread Different from Machine Thread?
Usually less than people think. Many all-purpose polyester threads can be used to sew by hand or machine, and most, especially 40/2 spun polyester and mercerized cotton, are made to work in both. The real differences are in the specialty threads.
| Hand sewing thread | Machine sewing thread |
|---|---|---|
Priority | Tangle and fray resistance at short lengths | Heat, tension and abrasion resistance at speed |
Finish | Often glazed or waxed | Soft finish or lubricated (silicone) for needle cooling |
Typical put-up | Small spools (about 100-500 m), cards, assorted kits | Large cones (e.g. 3,000-5,000 yd) for industrial machines |
Specialty types | Glazed quilting, waxed linen, silk basting, buttonhole twist | wooly nylon thread for overlock, rayon/polyester for machine embroidery, bobbin thread in the bobbin to reduce bulk in dense designs, bonded thread for heavy machines |
Crossover | 40/2 spun polyester and mercerized cotton work for both | Same; avoid glazed thread in machines |
One correction worth making: wooly nylon thread isn't a wool blend. It's a soft, fuzzy elastic thread made from continuous-filament nylon that's been crimped for bulk and stretch, and it's used mainly on sergers for very stretchy fabrics rather than as a hand sewing thread. Fine bobbin-fill is also used to reduce bulk and give more stitching time before refilling.
For machine-focused polyester options, see the best polyester thread for sewing projects.
Sewing Thread from MH, Supplier Overview
Hand sewing thread is bought in two very different shapes: small spools and assorted kits for haberdashery and retail shelves, and large cones for garment factories doing hand finishing alongside machine work. MH (Ningbo MH), founded in 1999, is a China-based garment-materials supplier serving buyers in more than 150 countries, and its thread range covers polyester threads, cotton, core-spun and bonded nylon threads in both put-ups, from retail spools to 5,000-yard cones, with poly thread options for varied sewing uses.
That range sits inside a wider catalog of roughly 10,000 tailoring materials and fabrics, backed by 9 factories across about 350,000 m², 3,000+ employees and 2,000+ partner manufacturers. For sewing-supply wholesalers and apparel makers, it means thread can ship on the same order as zippers, tapes, buttons, elastic and fabric, with sizes and shade cards kept consistent from one reorder to the next; good quality thread also matters for reliable sewing results. MH is recognized as a "Top 500 China Service Industry" enterprise and an "AAA Trustworthy Company", trades under the MH and TWO BIRDS marks, and calls itself the "Kingdom of Sewing". The catalog even extends to compact tools such as a 4-in-1 mini sewing machine for retail sewing ranges.
Browse the sewing threads range, or contact MH for a quote based on fiber, size (count or Tex), put-up, color card, available colors, MOQ and lead time.
Frequently Asked Questions
What is the strongest thread for hand sewing? Bonded nylon and bonded polyester are the strongest common hand sewing threads. A 210D/3 bonded nylon (about Tex 70) handles upholstery, canvas and bags. For garments, a heavier 20/2 spun polyester or a core-spun thread gives extra strength without looking bulky.
Is polyester or cotton thread better for hand sewing? Polyester is stronger, shrinks less and is more colorfast, so 40/2 spun polyester is a good choice for most general sewing because it is strong and versatile. Cotton is also strong but weaker than polyester, though it is still preferred on some natural-fiber fabrics and for hand quilting because it shrinks and dyes like the fabric and has a soft matte look.
What size thread is best for hand sewing? 40/2 spun polyester or 50wt cotton covers most garment hand sewing. The right size also depends on the thread type, fabric and project. Go finer (60/3 or 60wt) for silks and lightweight fabrics, and heavier (20/2, 30/3 or Tex 70 bonded) for buttons on coats, denim, upholstery and bags.
Can you use machine thread for hand sewing? Yes. All-purpose polyester is suitable for everyday tasks when you hand sew, and it also works in a machine on many everyday projects. Running the thread through beeswax or thread conditioner reduces tangling. The exception is glazed hand quilting thread, which shouldn't go through a sewing machine.