Use to sew middleweight fabrics and leather and reinforcing lighter duty belts. Average thickness: 0.29 mm (11/1000 In). Nominal tensile strength: 30 Lbs. Needle sizes: 110/18 to 125/20.
Code Description Image Price Stock  
KEV092NATL00B Bonded Kevlar - Size 92 (Tex 80) - Natural - 1/2 Oz Spool - 156 Yds - Strength 30 Lbs Kevlar 30 Lbs Color Chip $12.39 4
KEV092NATL01B Bonded Kevlar - Size 92 (Tex 80) - Natural - Nominal 1 Oz Spool - 312 Yds - Strength 30 Lbs Kevlar 30 Lbs Color Chip $18.79 6
KEV092NATL02B Bonded Kevlar - Size 92 (Tex 80) - Natural - Nominal 2 Oz Spool - 624 Yds - Strength 30 Lbs Kevlar 30 Lbs Color Chip $32.29 3
KEV092NATL04B Bonded Kevlar - Size 92 (Tex 80) - Natural - Nominal 4 Oz Spool - 1250 Yds - Strength 30 Lbs Kevlar 30 Lbs Color Chip $61.79 10
KEV092NATL08Se Soft (Not Bonded) Kevlar - Size 92 (Tex 80) - Natural - Nominal 8 Oz - 2500 Yds - Strength 30 Lbs Kevlar 30 Lbs Color Chip $93.79 17
KEV092NATL08B Bonded Kevlar - Size 92 (Tex 80) - Natural - Nominal 8 Oz Spool - 2500 Yds - Strength 30 Lbs Kevlar 30 Lbs Color Chip $93.79 14

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Kevlar Thread
kevlar thread
Kevlar thread is heat resistant to 800F. Use up to size 69 in home sewing machines. It is also one of the strongest commercially available threads, but it only comes in yellow.

Fire Retardant Sewing Thread
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Fire Retardant Sewing Thread - Use for sewing fire retardant gear like racing suits, welding apparel, and firefighting gear. Heat resistant to 700F.

Fire Retardant Embroidery Thread
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Fire Retardant Embroidery Thread - Looks and performs like regular embroidery thread. Use it for embroidering names and logos on fire retardant clothing and gear. Heat resistant to 700F.

PTFE Coated Fiberglass Thread
hand sewing needles
PTFE coated fiberglass thread is made from continuous fiberglass filaments that are heat resistant, chemical resistant, and strong. The PTFE Coating is heat resistant to 620F. The fiberglass filament has a 1022F operating temperature.

Nomex Thread
nomex thread

Nomex thread is heat resistant to 700F. Use up to size 69 in home sewing machines. With very few exceptions, it only comes in white.

Needles
groz-beckert needles 

Groz-Beckert Needles with cross reference to other brands, needle size charts, and our exclusive needle / machine use guide.

Nylon Thread
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Polyester Thread
polyester thread

Nylon and Polyester Thread - Use a heavier weight nylon or polyester thread instead of a lighter weight Kevlar. For example, a Size 138 nylon or polyester thread has about the same strength as a Size 69 Kevlar thread, costs about 80% less, and comes in colors. But, it is twice as thick, not fire retardant, and has 25% elasticity.

Aurifil Cotton
aurifil cotton thread
Cotton thread has a lower heat resistance. It chars, but it does not melt.