Best Serger Thread of 2025

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Serger thread is a type of thread that is specifically designed for use with sergers, also known as overlock machines. This thread is typically made from high-quality materials that are strong and durable, allowing it to withstand the high speeds and tension of the serging process. Unlike regular sewing thread, serger thread is typically thinner and stronger, allowing it to create tight, secure seams that are ideal for finishing edges and hems. Available in a wide range of colors and finishes, serger thread is an essential tool for anyone who wants to achieve a professional-looking finish on their sewing projects.
At a Glance: Our Top Picks
Top 10 Serger Thread
Mandala Crafts All Purpose Sewing Thread Spools - White Serger Thread Cones 4 Pack - 40S/2 24000 Yds White Polyester Thread for Overlock Sewing Machine Quilting
Mandala Crafts White Thread Spools are made from knot-free, heavy-duty, and non-stretch 100% polyester. These high-quality sewing thread cones are ideal for a variety of uses, including serging, quilting, overlock sewing, and hand sewing. The white color of the thread lays flat and creates clean lines without breaks. The spun polyester thread is strong and can withstand high stitching speeds, making it suitable for residential or commercial use with single needle. The bulk sewing thread kit includes four large spools, each with 6000 yards of continuous machine sewing thread, providing a total of 24000 yards. With minimal lint and consistent coloring, this serger thread set is perfect for decorative embroidery stitches.
AK Trading 4-Pack WHITE All Purpose Sewing Thread Cones (6000 Yards Each)
The AK Trading Sewing Thread Cones are high-quality, all-purpose sewing threads that are perfect for a wide range of projects. Each pack includes 4 cones of polyester threads, with each cone containing 6000 yards of thread. The threads have a high tensile strength and low lint, ensuring they won't fray or break easily. They are ideal for use with serge machines and are compatible with various sewing machine brands. Whether you're a professional or a beginner, these threads will simplify your sewing projects and provide excellent results. With their superior strength and long elongation, they eliminate the chances of thread breaks, looping, and puckering, allowing you to complete your projects efficiently and frustration-free.
Tortoise 8 Cones of 3000 Yards Each Spool Thread
Tortoise Sewing Thread is a high-quality 100% polyester thread that comes in a set of eight spools, with each spool containing 3000 yards of thread, giving you a total of 24000 yards. This thread is perfect for all your sewing projects, whether you are using a regular sewing machine or a high-speed sewing machine. The advanced twisting technology and air splicing technology used in the production of this thread ensures minimal joints in each cone, making it more durable and less prone to breakage. The polyester material used in this thread is soft, smooth, and strong, preventing fraying or breaking. With a color fastness to washing and sunlight of over level 4, you can be assured that the thread will not discolor or shrink. The Tortoise Sewing Thread offers great quality and convenience, making your sewing experience smoother and more enjoyable. Plus, with a 30-day money-back guarantee and 12-month warranty, you can buy with confidence.
American & Efird 4 Large Cones Thread
The American & Efird Thread is a reliable choice for all your sewing, quilting, and serging needs. Each of the four large cones provides 3000 yards of high-quality polyester thread, ensuring you have ample supply for various projects. This thread is known for its impressive seam strength, giving you peace of mind that your stitches will hold up over time. Additionally, it resists mildew and UV light, making it suitable for outdoor projects. You will also appreciate its resistance to shrinkage and abrasion, enhancing the durability of your creations.
American & Efird Maxi-Lock Thread
The Maxi-Lock Thread by American & Efird is a high-quality sewing thread designed specifically for sergers. Made from 100% polyester, this thread ensures durability and resilience, allowing you to tackle various sewing projects with confidence. Its even strength is perfect for high-speed sewing machines, offering consistent performance that keeps your stitches looking professional. With a generous 3000-yard cone, you'll have plenty of thread for multiple projects, reducing the need for frequent replacements and interruptions. This means you can focus more on your creativity and less on restocking supplies.
Designers Choice Black & White Serger Thread Set
The Designers Choice Thread Set includes 12 spools, featuring 6 black and 6 white threads, perfect for your quilting and embroidery projects. Each spool contains 1640 yards of high-quality spun polyester, ensuring durability and strength for all your sewing needs. With a total of 1500 meters per spool, you'll have plenty of thread to complete large projects without frequent interruptions. This set is designed to meet the demands of overlocking, offering smooth stitching and a professional finish. Enjoy the convenience of having essential colors on hand for any creative endeavor.
StiVerse 12 Colors Serger Thread
The StiVerse Serger Thread offers 12 vibrant colors, each providing 1800 yards of high-quality polyester thread. This durable thread is perfect for both beginners and experienced sewers, ensuring that your projects maintain their bright colors without fading. Its soft and smooth texture makes it easy to work with, reducing the risk of wear and breakage. With its versatility, you can use this thread on various sewing and embroidery machines, accommodating a wide range of sewing tasks, from quilting to garment making. Enjoy the convenience of a reliable thread that meets most of your sewing needs.
WAFASSZD Polyester Sewing Thread Set
The WAFASSZD Thread Set features high-quality 100% spun polyester threads that combine durability with a soft touch, making them perfect for various sewing projects. With four spools of 3000 yards each, you have a total of 12,000 yards at your disposal, ideal for all-purpose sewing machines and sergers. The thread boasts impressive tensile strength, ensuring smooth operation across popular brands like Brother and Singer without breaking. Additionally, it offers great color fastness, maintaining vibrant colors even after commercial laundering. This thread set not only enhances your sewing experience but also provides convenience and reliability for all your crafting needs.
AK TRADING CO. Sewing Thread 4-Pack
The AK TRADING CO. Thread Pack includes four high-quality polyester cones, each providing 6000 yards of versatile sewing thread. This all-purpose thread is perfect for a variety of projects, whether you're sewing, quilting, or using a serger machine. With its impressive tensile strength, you can sew with confidence, knowing it won't easily fray or break. The standard weight of 40 makes it suitable for most sewing machines, allowing you to tackle any embroidery task with ease. Plus, having multiple cones of the same color simplifies your projects, making it a great choice for both beginners and professionals alike.
ilauke Serger Thread Spools
Get the ilauke 4 x 3000 Yards Serger Thread Spools for your daily sewing needs. Made of 100% polyester, this durable thread won't fray, break, or tangle easily. It works with both serger and standard sewing machines, and can even be used by hand. Perfect as a gift for friends and family, these white thread spools are a great addition to any household.
Frequently Asked Questions (FAQs)
1. What kind of thread do you use for serger?
For sergers, cone thread is commonly used. Cone thread, available in polyester or cotton, is versatile and suitable for seaming, finishing edges, and other serging tasks. It comes in larger quantities compared to regular machine thread due to the high thread usage in sergers.
2. What is the difference between serger thread and regular sewing thread?
The main difference between serger thread and regular sewing thread is strength. Serger thread is generally weaker and sometimes has only two plies, while regular sewing thread usually has three plies. In case of urgency, regular sewing thread can be used in a serger, especially thinner threads like Mettler or Guttermann.
3. Can I use regular thread in a serger?
In a pinch for color matching, regular spools of sewing thread can be used in a serger. Thinner threads like Mettler or Guttermann are preferred in this case. However, cone thread is recommended for optimal performance and to ensure an adequate supply of thread for serging.
4. What size thread is a serger?
Sergers typically use 40 weight thread. The weight number indicates the thickness of the thread, with higher numbers representing thinner threads. However, other weights such as 50 can be purchased if necessary.
5. What is the difference between serger 3 thread and 4 thread?
The 3-thread overlock is similar to the 4-thread overlock but uses only one needle. This stitch offers more flexibility and is suitable for seaming light to medium weight fabrics or knits where a less bulky seam is desired.
6. Why do sergers use cones of thread instead of spools?
Cones of thread are preferred for sergers over traditional spools because cones can hold a larger quantity of thread. Using cones is more cost-effective as larger spools result in greater savings due to reduced winding process costs.
7. What stitch is closest to a serger?
The overlock stitch is the most commonly used stitch on sergers. The default settings for this stitch are usually indicated on the machine with a small dot next to the number four on tension dials. This stitch is versatile and can be used for various serging applications.
8. Do you have to use all 4 threads on a serger?
No, you do not have to use all 4 threads on a serger. It is possible to use 3 threads as long as both loopers are threaded. On a serger with two needles, you can leave one needle empty while ensuring both upper and lower loopers are threaded for the stitch to chain properly.
9. Is serger thread thinner than regular thread?
Yes, serger thread is generally thinner or finer than regular sewing machine thread. It is designed to avoid creating bulky seams and needs to be smooth and consistent since it passes through multiple pathways in a serger.
During our serger thread research, we found 24 serger thread products and shortlisted 10 quality products. We collected and analyzed 40,915 customer reviews through our big data system to write the serger thread list. We found that most customers choose serger thread with an average price of $17.61.
The serger thread are available for purchase. We have researched hundreds of brands and picked the top brands of serger thread, including Mandala Crafts, AK TRADING CO., tortoise, American & Efird, Designers Choice. The seller of top 1 product has received honest feedback from 1,515 consumers with an average rating of 4.8.

Ann Hale is a seamstress, pattern maker, and fashion designer with extensive sewing experience. She has worked in the fashion industry for over 10 years now after receiving Associates's Degree in fashion design in 2010. Also as a writer, she has many creative and unique insights when it comes to articles.