Your Brother serger deserves thread that keeps up with its speed and precision. Whether you are finishing seams on delicate knits or tackling heavy denim, the right cone can make the difference between smooth sailing and frustrating tangles. In this guide, we have evaluated five top-rated threads specifically for Brother sergers, focusing on strength, lint resistance, and compatibility. You will also find a handy buying guide to help you choose the perfect spool for your projects.

Buying Guide: What to Look for in a Brother Serger Thread

Choosing the right thread for your Brother serger involves more than grabbing any cone off the shelf. Here are the key factors we considered when reviewing these products.

Thread Weight and Ply

Most serger threads are 40-weight, 2-ply (40S/2), which offers a good balance of strength and fineness. This weight works well for overlocking, coverstitching, and general sewing. Heavier threads can cause bulky seams on lightweight fabrics, while finer threads may break under tension. All the threads in our list are 40S/2, making them versatile for various Brother serger models.

If you are new to serging, check out our complete guide on what a serger is used for to understand the basics before stocking up.

Fiber Type and Lint Production

Polyester threads are the go-to for sergers because they are strong, colorfast, and produce minimal lint. Lint can clog your machine’s tension discs and loopers, leading to skipped stitches. Spun polyester, in particular, mimics the feel of cotton but with added durability. All our featured threads are 100% spun polyester, ensuring smooth feeding and clean stitches.

For more insights on choosing the right thread brand, read our best serger thread brand guide.

Cone Size and Yardage

Sergers use four cones at once, so larger cones mean fewer replacements and less waste. Look for cones with at least 1,800 yards, but ideally 3,000 to 6,000 yards for extended projects. The products we reviewed offer generous yardage, ranging from 1,800 to 6,000 yards per cone, ensuring you can complete large sewing sessions without interruption.

If you are considering a new serger, our top serger machines for 2026 can help you pair the right thread with the right machine.

Color Options and Versatility

While black and white are essential, having a variety of colors expands your creative possibilities. Some packs include multiple colors, while others focus on neutrals. Think about the types of projects you sew most often and choose a set that covers your needs. For garment sewing, a mix of neutral and vibrant shades is handy.

For those who love coverstitch projects, check out our best serger coverstitch combo machines to see which models pair well with these threads.

Final Thoughts

After reviewing these five threads, we recommend the Black & White Sewing Thread for sewists who want a reliable, dual-color set with high yardage, and the AK Trading 4-Pack White All Purpose Sewing Thread for those who prefer a bulk pack of a single color for large projects. Both offer excellent strength and low lint, ensuring your Brother serger performs at its best. Whichever you choose, you will enjoy smooth stitching and professional results.

Frequently Asked Questions

What kind of thread should I use for my Brother serger?

For Brother sergers, a 40-weight, 2-ply spun polyester thread is ideal. It offers strength, low lint, and smooth feeding through the machine’s tension system. Look for cones labeled 40S/2, which are specifically designed for serging and overlocking.

Can I use regular sewing thread in a serger?

You can, but it is not recommended. Regular thread comes on small spools that run out quickly, and it may not be as strong or lint-free as serger thread. Serger thread cones are designed for high-speed machines and provide more consistent tension.

How many cones of thread does a Brother serger use?

Most Brother sergers use four cones simultaneously: two for needles and two for loopers. Some models can use three or five, but four is the standard. Buying thread in sets of four or more ensures you have enough of the same color.

Is expensive serger thread worth it?

Expensive threads often have better quality control, meaning fewer breaks and less lint. However, many affordable options, like the ones in this review, perform just as well. Consider your project needs and budget when choosing.

For more tips on serger maintenance and thread selection, visit our guide on air-threading sergers.