Not all threads perform equally when you want to select the best thread for sewing machine. Your choice can greatly impact stitch quality, tension balance, and project durability.
Polyester all-purpose thread dominates the market with its versatile 40-weight composition. However, many specialized options also offer distinct advantages for specific applications. Let's examine the critical factors that'll help you match the perfect thread to your next project.
Key Takeaways
- Polyester all purpose thread is the most versatile choice. It's a strong thread and compatibility with most fabric types.
- Cotton thread (40wt) is best for natural fabrics and quilting projects. It's excellently heat resistant and has minimal stretch.
- Thread weight should match your project, with 50wt for general sewing and 30wt for heavy-duty applications like denim.
- Choose high-quality branded threads to reduce lint production and prevent machine damage.
Best Thread for Sewing Machine: 7 Different Threads

Choosing the best sewing thread can significantly impact the quality of your sewing. So, let's explore the different types of threads.
1. Cotton Thread
Cotton thread is a cornerstone of the quilting and sewing community. It offers superior performance due to its natural fiber composition and minimal stretch.
This kind of thread is available in weights ranging from 30wt to 50wt. The 40wt is the most versatile for machine sewing applications.
For best quilting results, choose 100% cotton quilting thread to prevent wear on pieced fabric fibers.
2. Polyester Thread
Polyester thread has emerged as a powerhouse in modern sewing applications. It offers superior strength-to-weight ratios and exceptional versatility across fabric types.
Polyester thread is available in various weights. So you can confidently use it for both delicate garments and heavy-duty applications. It is an excellent choice for hand sewing and machine embroidery threads.
You'll appreciate polyester's resistance to shrinkage and fading. This ensures your finished projects retain their integrity through multiple washes.
3. Nylon Thread
Nylon stands out for its exceptional tensile strength and unique molecular structure. It delivers superior elasticity. The thread's natural luster also provides an aesthetically pleasing finish to your work.
This heavy-duty thread is particularly effective for projects involving upholstery, outdoor gear, and weather-exposed applications. Its resistance to moisture and mildew makes it ideal for these applications.
When selecting nylon thread, you must match it with appropriate needle specifications. So you can prevent thread breakage and guarantee optimal stitch formation.
4. Silk Thread
When selecting premium thread options, silk thread stands out as a superior choice. This is due to its exceptional strength-to-diameter ratio and natural sheen.
To achieve optimal performance, pair silk thread with the appropriate needle size. For diverse applications, the size is generally between 30 wt and 100 wt.
The thread's natural elasticity provides excellent stitch formation on delicate fabrics. You'll find it particularly effective for fine embroidery and high-end garment construction.
However, silk thread requires specific care during laundering. Proper care can preserve its luxurious qualities and prevent color bleeding.
5. Jeans Thread
Jeans thread is a strong, heavy-duty thread for denim and thick fabrics. This robust thread is usually in 30-40 weight gauges. It's ideal for heavy-duty sewing projects that demand superior strength and resilience.
This polyester-cotton blend thread is ideal for professional topstitching. It works especially well in traditional denim colors like bronze, blue, and black.
For peak performance, pair your jeans thread with a specialized denim needle.
6. Metallic Thread
Metallic thread adds a luxurious shimmer to decorative sewing projects. Its construction consists of a polyester core wrapped in metallic foil.
For ideal results, equip your machine with a specialized metallic needle. Meanwhile, reduce your sewing speed and install a thread stand.
This thread is perfect for embellishments and decorative stitching. But avoid using it for structural seams due to its lower tensile strength.
7. Overlocker/ Serger Thread
The overlocker/serger thread is designed specifically for sergers and overlockers. It features a fine 120-weight construction. This is essential for creating professional-grade seam finishes.
Usually, this specialized thread is made from polyester. It offers superior strength and elasticity. It's ideal for handling stretch fabrics without compromising stitch quality.
The thread's resistance to fraying and breakage supports high-speed sewing operations. Thus, it can deliver consistently reliable results in overlocking projects.
Factors to Consider When Choosing a Thread

To select machine threads, you'll need to consider several critical factors.
Fabric Type
Select the right thread based on your fabric type. This stands as one of the most essential factors in achieving professional-looking seams.
- Match polyester thread with synthetic materials for maximum durability and stretch.
- Cotton threads excel with natural fibers like linen and cotton garments.
- Opt for specialized top-stitching threads for heavier fabrics such as denim or upholstery. They can withstand significant tension.
- Choose fine-weight threads when working with delicate fabrics (60wt to 80wt). They can create subtle, nearly invisible stitches.
Project Type
When selecting thread for your sewing machine, assess the project's functional requirements.
For garments experiencing high stress, opt for all-purpose threads or heavy-duty polyester options.
Specialty threads enhance specific project elements. Elastic thread works for gathering, topstitching threads for visible seams, and reinforced threads for load-bearing areas.
Each sewing project demands precise thread selection to guarantee superior performance.
Thread Weight
Thread weight is a critical numerical indicator of thread thickness. It directly influences your sewing machine's performance and project outcomes.
The numbering system works inversely. Lower numbers show thicker thread, while higher numbers denote thinner thread variants.
- For versatile applications, choose 50wt all-purpose thread, ideal for general garment construction.
- When working with heavyweight fabrics, opt for 30wt or lower thread quality to guarantee robust seams.
- Conversely, delicate projects benefit from higher-weight threads, offering refined stitching detail.
Durability and Strength
When evaluating thread strength, polyester thread offers superior high tensile strength and resilience. It's ideal for high-stress garments and frequent washing.
Cotton threads, while excellent for natural fabrics, prove to be less durable in demanding applications.
To assess quality, perform a snap test by stretching a length of thread. Quality threads shouldn't break easily or show signs of brittleness.
Top Thread Brands for Sewing Machines
Selecting premium thread brands can affect your sewing machine's performance and project outcomes.
- Coats & Clark's colorfast threads are exceptional in quality. They deliver consistent tension across various applications.
- Gutermann's polyester and cotton options excel in both decorative and structural stitching.
- Mettler's silky-smooth threads guarantee flawless feed through your machine's tension discs.
- For precision quilting, consider Aurifil's low-lint cotton threads, which reduce bobbin buildup.
Tips for Using Sewing Machine Threads
Here are some valuable tips for using sewing machine threads effectively:
- Choose the Right Thread Type: Use thread appropriate for your fabric and project. Cotton thread is great for natural fabrics. Polyester thread is more versatile and works well with synthetic fabrics.
- Match Thread and Needle Size: Ensure your needle size matches your thread. A thicker thread requires a larger needle, while a finer thread needs a smaller needle.
- Thread Quality: Invest in high-quality thread. Cheaper threads can be linty and weak, causing breakage and tension issues.
- Proper Thread Tension: Adjust the tension based on your fabric and thread. Test on a scrap piece to ensure even stitching without puckering or loose stitches.
- Thread Storage: Store threads in a cool, dry place away from direct sunlight. Doing so prevents fading and weakening.
- Regularly Clean Your Machine: Lint from threads can build up in your machine. Clean the bobbin area and other parts to prevent jams and maintain smooth operation.
- Use the Right Bobbin Thread: For best results, use the same type of thread in both the bobbin and the top spool. Use a different bobbin thread only if the design specifically requires it.
- Threading the Machine: Follow your sewing machine's manual to thread it properly. This ensures the thread is securely placed in all tension discs and guides.
Conclusion
It's essential to select the right thread for your sewing. Each type of thread offers unique benefits tailored to specific applications. Factors such as fabric type and thread weight are crucial in ensuring stitch quality and durability.
Choosing high-quality brands can enhance your sewing experience. By following best practices, you can achieve professional-looking results.
Learn more sewing tips on the Longan Craft Blog, and dive into the fabric world with Longan Craft!
FAQs
What Type of Thread Is Best for a Sewing Machine?
You'll want a universal polyester thread for its superior strength and versatility. For quilting, opt for Star cotton thread. Choose 40wt Gutermann or Mettler brands. They'll reduce tension issues and breakage while sewing.
Is It Better to Sew With Cotton or Polyester Thread?
Polyester thread is superior for machine sewing. This is due to its tensile strength, lint-free performance, and elasticity. However, choose cotton thread when quilting or working with natural fibers.
What Is the Best Quality Thread for Stitching?
You'll achieve ideal stitch integrity with all-purpose polyester threads. These offer superior tensile strength, minimal lint production, and exceptional colorfastness.
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