Bulk Heavy Duty Sewing Thread Thick & Strong Wholesale For Sale

If you are looking for threads to sew lots of layers or some fairly thick or stiff fabrics, Rongdu has the very thread that is heavy duty thread. There are a wide array of applications including footwear, leather goods, luggage and bag, furniture upholstery, mattress, sports equipment, denim, automobile, canvas, tent, wire and cable applications, filtration and more.

Types of Heavy Duty Thread

Nylon Filament Thread Polyester Filament Thread

Filament Thread

Our strong sewing thread is available in polyester and Nylon for sewing a few of layers or some fairly thick or stiff fabrics. The thread has tight twists and no lint, which helps keep your machine cleaner and doesn't add bulk at the seams.

Bonded Nylon Thread Bonded Polyester Thread

Bonded Thread

Bonded thread is typically a two, three, or four-ply construction coated with resin that makes filaments twisting more tough with a uniform finish. Besides adding abrasion resistance and smooth stitching, the resin coating improves environmental resistance like heat tolerance, chemical and mildew resistance.

Recycled Nylon Thread Recycled Polyester Thread

Recycled Thread

Recycled thread refers to a type of thread made from recycled materials, primarily sourced from post-consumer plastic or nylon waste, such as plastic bottles, textiles, fabrics, fishing nets and so on...

Heavy Duty Thread Measurement

Tex

Tex size is the weight in grams of 1,000 meters of a continuous filament polyester thread. For example, a thread marked as tex 70 means that the weight of 1000 meters of thread is equal to 70 grams

Denier

Denier size is the weight in grams of 9,000 meters of a heavy duty thread. For instance, if 9000 meters of thread weighs 210 grams, then the denier size is 210D.

Weight

Weight size means how much kilometers a thread takes to reach 1 kilogram. So contrary to the before two measurements, The higher the number, the lighter/finer the thread.

How To Choose Heavy Duty Thread?

The thread material must match the type of fabric used. Under no circumstance should you select a delicate cotton thread for sewing a woolen fabric for example.

The size of thread depends on the thickness of fabric. The higher the tex or denier number, the thicker the thread. You won't use a finer thread to sew medium-heavy fabric.

The eye of the needle should be considered while finalizing on a particular thread. You'll need to fit the thread through the eye after all. A needle with a suitable eye gives the thread appropriate room to move, which lessens the friction.

Always try to go for branded thread while undertaking a project. A branded thread means every time you will receive consistent products, with no dye-lot variance.