Shop the Best Deals on Sewing Thread in Bulk

This top-quality thread is specifically designed to withstand frequent washes and strain, making it an ideal choice for those who sew regularly. Made from 100% core-spun polyester, this thread is perfect for sergers and overlock machines, including the popular Janome CoverPro family of machines. With it’s superior durability and reliability, you can trust that your projects will stand the test of time. So why wait? Shop the best deals on sewing thread in bulk and take your sewing game to the next level with Madeira Aerolock Premium Serger thread.

What Is a Synonym for Spools?

A synonym for spools is reels. When it comes to purchasing sewing thread in bulk, one of the best options available is the Madeira Aerolock Premium Serger thread. This thread is known for it’s exceptional quality and durability, making it ideal for those who frequently launder their garments or put them under strain.

The Madeira Aerolock Premium Serger thread is made of 100% core-spun polyester, which contributes to it’s strength and longevity. This type of construction ensures that the thread won’t break easily, even when subjected to heavy use. It’s particularly well-suited for sergers and overlock machines, such as the Janome CoverPro family of machines.

One of the major advantages of purchasing thread in bulk is the cost savings it offers. Buying in bulk allows you to get a larger quantity of thread at a lower price per spool, ensuring that you always have enough on hand for your sewing projects.

It’s core-spun polyester construction makes it strong and durable, making it perfect for sergers and overlock machines.

Different Types of Spools/Reels for Different Types of Thread or Materials

  • Plastic spools for general-purpose sewing threads
  • Wooden spools for silk threads
  • Metal spools for metallic threads
  • Cone-shaped spools for large industrial threads
  • Cardboard spools for embroidery floss
  • Absorbent spools for water-soluble threads
  • Double-ended spools for bobbins in sewing machines
  • Tube spools for delicate threads like lace or crochet
  • Magnetic spools for metallic or magnetic threads
  • Coreless spools for bulky or textured yarns
  • Plastic bobbin spools for machine embroidery

Madeira Aerolock Premium Serger thread is known for it’s durability and strength, making it a popular choice for those looking for a reliable thread for their sergers and overlock machines. One common question that arises when selecting thread is determining the thickness, as this can impact the overall appearance and functionality of the finished product. In particular, many individuals wonder whether a thread labeled as 30 or 40 is thicker. To help clarify this confusion, it’s important to understand that thread thickness is typically measured in denier, a unit that relates to the weight and thickness of the individual fibers.

Which Thread Is Thicker 30 or 40?

When it comes to comparing thread thickness, the numbers 30 and 40 refer to the thread weight or thread count. In general, the higher the number, the thinner the thread. So, a 40 weight thread would be thinner than a 30 weight thread. However, it’s important to note that thread weight can vary between different brands and materials.

One popular brand for serger and overlock machines is Madeira Aerolock Premium Serger thread. This thread is known for it’s exceptional quality and durability. Made from 100% core-spun polyester, it’s designed to withstand frequent washes and strain, making it perfect for projects that require longevity.

Using the right thread weight, such as 30 or 40, can also make a difference in the final result. On the other hand, a thicker thread like a 30 weight can add more visual impact and durability to heavier fabrics or decorative stitching.

Buying sewing thread in bulk is a great way to save money and ensure you always have the right thread on hand for your projects. Whether you choose a 30 or 40 weight thread, investing in a high-quality brand like Madeira Aerolock can guarantee that your stitching will withstand the test of time.

Understanding Different Types of Thread Weights and Their Uses

When it comes to sewing thread, understanding the different types of thread weights and their uses is important. Thread weight refers to the thickness or thinness of the thread. The weight of the thread can affect the overall look and durability of your sewing project.

Thread weights are typically categorized using numbers. The higher the number, the thinner the thread. For example, a thread with a weight of 50 is thinner than a thread with a weight of 30. It’s important to choose the right thread weight for your specific sewing needs.

Lightweight threads, such as 60wt or 50wt, are often used for delicate fabrics and fine sewing projects, like lightweight apparel or lace. These threads create less bulk and are less noticeable on thin fabrics.

Medium weight threads, like 30wt or 40wt, are versatile and commonly used for general sewing projects. They work well for both lightweight and medium weight fabrics, providing a good balance between strength and visibility.

Heavyweight threads, such as 20wt or 12wt, are thicker and stronger. These threads are ideal for heavy-duty sewing projects, like upholstery or denim. They can withstand more stress and create a bold, visible stitch.

When shopping for sewing thread in bulk, consider the different thread weights available and choose the ones that best suit your specific sewing projects. Understanding the uses of different thread weights will help you achieve the best results in your sewing endeavors.

Source: Best thread for Janome CoverPro 1000CPX? What’s


Whether you’re using a serger/overlock or a coverlock machine like the Janome CoverPro family, this thread will deliver exceptional results. So, if you're looking to stock up on top-notch thread without breaking the bank, look no further than Madeira Aerolock Premium Serger thread.

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