RAMAINTEST
Industrial threads are built for jobs like leatherwork, upholstery, tents, banners, tarps, and conveyor belts. They are strong, durable, and made for high‑speed, heavy‑duty sewing. Lighter sizes up to Size 69 / Tex 70 run on most home and commercial machines; heavier sizes need commercial machines.
We specialize in industrial threads with a wide color range and all sizes in stock. We also carry about 2,200 sewing machine needles and a large selection of prewound bobbins. Most threads come in 2 and 4 oz spools, standard 8 and 16 oz spools, and discounted multi‑spool cases.
Nylon Thread - Ten Sizes - Over 100 colors in some sizes.
- Nylon thread is strong, smooth-sewing, durable and easy to use.
- Nylon is a great thread for leather, canvas and vinyl.
- Use up to size 69 nylon in most home sewing machines.
- Buy what you need - We have nylon thread on single small spools, large spools and cases.
Polyester Thread - Nine Sizes - Great for outdoor use.
- Polyester looks and feels like nylon thread with comparable strength, durability, and ease of use.
- Polyester thread is UV resistant. It is great for outdoor use with fabric, leather, canvas and vinyl.
- Use up to size 69 polyester thread in most home sewing machines.
- Buy what you need - We have Polyester thread on single small spools, large spools and cases.
Kevlar (TM) Thread - Kevlar thread is strong and withstands temperatures up to 800F.
- Kevlar thread does not melt. It turns to ash.
- Size-for-size, Kevlar thread is on average 2.5 times stronger than nylon and polyester.
- Kevlar thread has a low stretch at around 2% over time.
- Buy what you need - We have Kevlar thread on single small spools and large spools.
All Needles
Needles Information
Thread To Needle Size Chart
Machine To Needle Reference
Groz-Beckert Publications
Machine Needles - Over 2,000 Groz-Beckert and Schmetz selections.
- Find the needles you need in one place.
- Machine To Needle Reference.
- Sequenced needle systems for harder to find needles.
- Thread to needle size chart.
- New - Needles for shoe patcher machines.
Prewound Bobbins
Prewound Bobbin Buying Guide
Bobbin Style to Machine Reference
Prewound Bobbin Style Guide
Prewound Bobbins - Save time with pre-loaded bobbins.
- Full-gross (144), half-gross (72), and packs of 12 for smaller jobs.
- Styles A (Class 15), G, L, M, and U - Other styles on closeout.
- Wide selection of half-price bobbins.
- Find the right bobbin for your machine.
Monofilament Thread - Also called invisible nylon thread.
- Similar texture to fishing line, but thinner.
- Comes in 9 sizes from ultra-thin size .004 to sturdy-size .012.
- Small spools in sizes .005 to .012.
- 1.5 Lb. canisters in all sizes - Case quantities available.
Fire-Resistant (FR) Thread
About Fire-Resistant Thread
PTFE Fiberglass Information
Kevlar Thread information
FR Thread to Needle Size
Fire-Resistant (FR) Thread - Nomex, Kevlar, PTFE Fiberglass thread for high-temperatures.
- Heat-resistant threads for gear and apparel - used by first responders, military, motorsports, welders, and other high-heat applications.
- Spun Nomex and spun Kevlar protect to 700F (366C); bonded and soft filament Kevlar to 800F (427C); PTFE-coated fiberglass to 1022F (550C).
- Use lightweight threads for garments; heavier threads for protective equipment.
- Most threads are available in both small and large spools.
Bag Closing Thread - FDA Compliant.
- Use to seal paper, polypropylene, cotton and jute bags.
- Also a strong, inexpensive, and knot free thread.
- Comes in 4-ply and 5-ply thicknesses.
- Available in 8-Oz, 5-Lb, and 20-Lb cones.
Sewing Accessories - Notions and accessories that make sewing easier.
- Thread cone holders let you use economical king spools with sewing machines that only accept mini spools.
- Thread sock stops puddling by gently holding the thread in place while it is on the spool.
- Scissors, shears, snips and cutters made by Kretzer, Consew Smooth Cut, Fiskar and Slice.
- Velcro (TM) and other hook-and loop, measuring tools and tool kits