Updated:21 October 2026
Rank 1-16 of the best Overlock Threads
Our recommendation Price Customer rating
1. Comparison winner
New Brothread Polyester Sewing Thread 40S/2 (Tex27) - White
New Brothread Polyester Sewing Thread 40S/2 (Tex27) - White
Available immediately
free shipping
  • made from 100% spun polyester for the strength of polyester with a soft, matte cotton-like finish
  • total length of 20000 meters, with 4 large cones each of 5000m
  • each pack includes 4 cones
Our rating
9,8
very good
2. Bestseller
Brothread All-Purpose Polyester Sewing Thread 40S/2 (Tex 27), 4 x 5000m Cones, Cream
Brothread All-Purpose Polyester Sewing Thread 40S/2 (Tex 27), 4 x 5000m Cones, Cream
Available immediately
free shipping
  • Material: 100% spun polyester sewing thread available in 28 colours for general purpose sewing
  • Länge: total length 20,000 metres across 4 cones, each cone containing 5,000 metres
  • Anzahl der Konen: 4 cones in the pack
Our rating
9,8
very good
brothread All Purpose Polyester Sewing Thread 40S/2 (Tex27) 4 x 5000m Black
brothread All Purpose Polyester Sewing Thread 40S/2 (Tex27) 4 x 5000m Black
Available immediately
free shipping
  • material: 100% spun polyester sewing thread
  • length: total length of 20000 metres (4 cones each 5000 metres)
  • number of cones: 4 large cones
Our rating
9,8
very good
50+ purchases last month
Gütermann Miniking Overlock Yarn Set, 4 Cones, 1000m, White
Gütermann Miniking Overlock Yarn Set, 4 Cones, 1000m, White
Available immediately
free shipping
  • 100% polyester
  • universal sewing thread compatible with all household and overlock sewing machines
  • suitable for closing seams, quilted seams, overlock seams, coverlock seams and safety seams
Our rating
9,8
very good
5. Best value
Overlocking Polyester Thread 5000 Yards Fuchsia Pink
Overlocking Polyester Thread 5000 Yards Fuchsia Pink
Available immediately
free shipping
  • 100% polyester thread for durability and softness
  • Thread spools contain 5000 yards each
  • Suitable for edging, hemming, seaming and more
Our rating
9,8
very good
Realm Sewing Machine Thread Cones - White
Realm Sewing Machine Thread Cones - White
Available immediately
free shipping
  • 100% polyester
  • 5000 yards per cone
  • , ideal for garment construction, hemming, quilting and more
Our rating
9,6
very good
Rohans Overlock Yarn 40/2 (120) – 100% Polyester Sewing Thread Cones – 5000 yards (4570 m) – Multicolour – Red – Pack of 4
Rohans Overlock Yarn 40/2 (120) – 100% Polyester Sewing Thread Cones – 5000 yards (4570 m) – Multicolour – Red – Pack of 4
Available immediately
free shipping
  • Material: 100% polyester yarn cone with 40/2 thickness
  • Length: approximately 4570 metres
  • Durability: durable and tear-resistant polyester thread cones with chemical resistance
Our rating
9,6
very good
Overlocking Sewing Machine Thread Set - 4 Cones, White
Overlocking Sewing Machine Thread Set - 4 Cones, White
Available immediately
free shipping
  • 100% polyester material
  • 5000-yard spool length
  • 4 spools included providing a total of 20,000 yards
Our rating
9,6
very good
Realm Overlocking Sewing Machine Polyester Thread, 4 x 5000 yd Cones in White, Black, Natural, Navy, Red
Realm Overlocking Sewing Machine Polyester Thread, 4 x 5000 yd Cones in White, Black, Natural, Navy, Red
Available immediately
free shipping
  • Material: 100% polyester fabric
  • Length: each cone holds 5000 yards
  • Applications: suitable for garment construction, hemming and quilting and other sewing projects
Our rating
9,6
very good
300+ purchases last month
Bottle Green 103 Overlocking Polyester Sewing Thread, 4 x 5000-yard Cones
Bottle Green 103 Overlocking Polyester Sewing Thread, 4 x 5000-yard Cones
Available immediately
free shipping
  • polyester thread made from a durable synthetic fibre
  • length per cone is 5000 yards
  • four cones included
Our rating
9,5
very good
Overlocking Thread Cones 40S/2, 3000yds, Colour 325 Black
Overlocking Thread Cones 40S/2, 3000yds, Colour 325 Black
Available immediately
free shipping
  • Material: Polyester 100%
  • Length per cone: 3000 yards
  • Yarn type: 40S/2
Our rating
9,3
good
Ilauke 4 x 3000 Yards White Polyester Serger/Overlock Thread Spools
Ilauke 4 x 3000 Yards White Polyester Serger/Overlock Thread Spools
Coming soon
free shipping
  • material: 100% polyester thread
  • length: 9000 feet per spool
  • spools: 4 spools
Our rating
9,1
good
Rohans Overlock Yarn 40/2, 5000 Yards Sewing Thread Cone, White, 4-Pack
Rohans Overlock Yarn 40/2, 5000 Yards Sewing Thread Cone, White, 4-Pack
Available immediately
free shipping
  • made from 100% polyester yarn
Our rating
9,1
good
Realm Overlocking Polyester Thread, 5000-Yard Cones – White, Black, Natural, Navy, Red
Realm Overlocking Polyester Thread, 5000-Yard Cones – White, Black, Natural, Navy, Red
Available immediately
free shipping
  • the material is 100 percent polyester
  • the length per cone is 5000 yards
  • works with most standard sewing and overlocking machines and is suitable for a variety of sewing projects including garments, accessories and home décor items
Our rating
9,0
good
MNJ-Trimmings 1000 Yards Polyester Overlocker Thread
MNJ-Trimmings 1000 Yards Polyester Overlocker Thread
Available immediately
free shipping
  • made from durable material ensuring long-lasting use
  • 1.5 meters in length suitable for various applications
  • consists of 3 cones for flexibility in setup
Our rating
8,9
good
Gutermann Toldi Lock Overlocking Thread 2500m, 1 Reel, Jean Gold (742279 1970)
Gutermann Toldi Lock Overlocking Thread 2500m, 1 Reel, Jean Gold (742279 1970)
Available immediately
free shipping
  • Material: 100% polyester
  • Durability: shrink-free and easy to clean; colour fast; strong yet fine for repairs on heavyweight fabrics
  • Applications: ideal thread for all overlocking projects; suitable for machine and hand sewing
Our rating
8,6
good

Similar Overlock Thread comparisons

Overlock Threads buying guide: How to choose the right product from the above Overlock Threads test or comparison

Understanding Overlock Thread: What It Is and Why You Need It

What is Overlock Thread?

Overlock thread is a special type of thread designed for use with overlock machines, which are popular in sewing for finishing edges and seams while preventing fraying. Unlike regular sewing thread, overlock thread is typically finer and stretchier, allowing for a more flexible and durable stitch that can adapt to the movement of fabric.

The Importance of Overlock Thread

Using the right overlock thread can significantly improve the quality of your sewing projects. It provides a clean, professional finish that not only enhances the appearance of your garments but also contributes to their durability. Whether you’re sewing stretchy fabrics for activewear or delicate lace for a special occasion, the right overlock thread is crucial in achieving the best results.

Choosing the Right Overlock Thread for Your Projects

Consider Your Fabric Type

When selecting overlock thread, the type of fabric you’re working with is paramount. For example, lightweight fabrics like chiffon or silk require fine, lightweight threads to avoid puckering, whereas thicker fabrics, such as denim or canvas, benefit from sturdier, more robust threads. Knowing your fabric will guide you toward the appropriate thread weight and type.

Selecting Thread Weight

Overlock threads come in various weights, expressed as Tex or number. Generally, a thread weight of 30 to 40 is ideal for most sewing projects. However, always refer to your overlock machine’s manual for specifications, as some machines may perform better with specific weights.

Colour Matching

Colour matching is another key aspect. While it’s tempting to use a thread colour that perfectly matches your fabric, opt for slightly contrasting shades if you’re working on seams or edges. This can enhance visual interest and hide any minor inconsistencies in stitching.

Superior Threads

Superior Threads is known for its high-quality overlock thread that works beautifully with a variety of fabric types. Their threads are durable and designed to reduce lint, which keeps your machine cleaner.

Gutermann

Gutermann is another reputable brand that offers a range of overlock threads suitable for both light and heavy fabrics. Their threads are highly regarded for their strength and smooth feeding through the machine.

Coats

Coats is widely recognised for its reliable overlock threads, combining affordability with quality. They offer a fantastic selection of colours, making them a popular choice among crafters.

Tips for Using Overlock Thread Effectively

Proper Thread Tension

Maintaining the right thread tension is critical for achieving professional-looking seams. Too tight, and the fabric will pucker; too loose, and you’ll end up with a loose and sloppy edge. Adjust the tension settings according to your fabric type and thread weight.

Regular Maintenance of Your Machine

Regularly maintaining your overlock machine helps ensure that it runs smoothly when using overlock thread. Clean the machine regularly, oil as recommended, and check for any wear or damage to needles and threads, as this can impact the sewing quality.

Caring for Your Overlock Thread: Keeping It Fresh and Functional

Storage Conditions

To extend the life of your overlock thread, store it in cool, dry places, away from direct sunlight. Keeping threads in a sealed container can prevent dust accumulation and fading, ensuring that they remain vibrant and ready for your next project.

Checking for Damage

Before using overlock thread, take a moment to check for damage. Look for fraying, knots, or tangles that may interfere with your sewing. Using damaged thread can lead to frustration and subpar results, so it’s worth inspecting each spool before you begin.

Table of contents
  1. Understanding Overlock Thread: What It Is and Why You Need It
  2. Choosing the Right Overlock Thread for Your Projects
  3. Top Brands of Overlock Thread: Our Recommended Picks
  4. Tips for Using Overlock Thread Effectively
  5. Caring for Your Overlock Thread: Keeping It Fresh and Functional

Overview

1. Comparison winner
New Brothread Polyester Sewing Thread 40S/2 (Tex27) - White
Our rating
9,8
very good
New Brothread Polyester Sewing Thread 40S/2 (Tex27) - WhiteAvailable immediately
2. Bestseller
Brothread All-Purpose Polyester Sewing Thread 40S/2 (Tex 27), 4 x 5000m Cones, Cream
Our rating
9,8
very good
Brothread All-Purpose Polyester Sewing Thread 40S/2 (Tex 27), 4 x 5000m Cones, CreamAvailable immediately
brothread All Purpose Polyester Sewing Thread 40S/2 (Tex27) 4 x 5000m Black
Our rating
9,8
very good
brothread All Purpose Polyester Sewing Thread 40S/2 (Tex27) 4 x 5000m BlackAvailable immediately
Gütermann Miniking Overlock Yarn Set, 4 Cones, 1000m, White
Our rating
9,8
very good
Gütermann Miniking Overlock Yarn Set, 4 Cones, 1000m, WhiteAvailable immediately
5. Best value
Overlocking Polyester Thread 5000 Yards Fuchsia Pink
Our rating
9,8
very good
Overlocking Polyester Thread 5000 Yards Fuchsia PinkAvailable immediately
Realm Sewing Machine Thread Cones - White
Our rating
9,6
very good
Realm Sewing Machine Thread Cones - WhiteAvailable immediately
Rohans Overlock Yarn 40/2 (120) – 100% Polyester Sewing Thread Cones – 5000 yards (4570 m) – Multicolour – Red – Pack of 4
Our rating
9,6
very good
Rohans Overlock Yarn 40/2 (120) – 100% Polyester Sewing Thread Cones – 5000 yards (4570 m) – Multicolour – Red – Pack of 4Available immediately
Overlocking Sewing Machine Thread Set - 4 Cones, White
Our rating
9,6
very good
Overlocking Sewing Machine Thread Set - 4 Cones, WhiteAvailable immediately
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