Looks like cotton thread. Actually Nomex or Kevlar wrapped in cotton. Does not melt. Decomposes at 700F.
fire retardant thread Use fire retardant Nomex (tm) and Kevlar (tm) for sewing seams and attaching patches to clothing and gear used by first responders, motor sports participants, and others who need protection from fire and heat. It has a flat, cotton-like finish, and meets NFPA standards: 1975-1999, 1971-1997, 1976-1992, and 1977-1998.

New ! All Groz-Beckert Machine Needles and C.S. Osborne Hand Sewing Needle Kits

Information
Code Color Description
fire-retardant-sewing-thread-small-spools Fire Retardant Sewing Thread - Small Spools Fire Retardant Sewing Thread - Small Spools
Fire retardant sewing thread on low cost spools weighing two ounces or less
Select
Code Description Image Price Stock  
FRS027PURP04Ng Spun Nomex Thread - Tex 27 - Passion Purple - Nominal 4 Oz Spool - 4712 Yards Passion Purple Color Chip $19.79 3
FRS027Red101N Spun Nomex Thread - Tex 27 - Rusty Red - Nominal 1 Oz Spool - 1178 Yards Rusty Red Color Chip $8.79 5
FRS027RED102N Spun Nomex Thread - Tex 27 - Rusty Red - Nominal 2 Oz Spool - 2356 Yards Rusty Red Color Chip $12.79 5
FRS027RED104N Spun Nomex Thread - Tex 27 - Rusty Red - Nominal 4 Oz Spool - 4712 Yards Rusty Red Color Chip $19.79 3
FRS027RED106N Spun Nomex Thread - Tex 27 - Rusty Red - Nominal 6 Oz Spool - 7068 Yards Rusty Red Color Chip $25.79 49
FRS035GRES01K Spun Kevlar Thread - Tex 35 - Sage Green - Nominal 1 Oz Spool - 750 Yards Sage Green Color Chip $8.79 3
FRS035GRES02K Spun Kevlar Thread - Tex 35 - Sage Green - Nominal 2 Oz Spool - 1500 Yards Sage Green Color Chip $12.79 6
FRS035GRES04K Spun Kevlar Thread - Tex 35 - Sage Green - Nominal 4 Oz Spool - 3000 Yards Sage Green Color Chip $19.79 4
FRS035GRES16K Spun Kevlar Thread - Tex 35 - Sage Green - Nominal 16 Oz Spool - 12000 Yards Sage Green Color Chip $60.79 54
FRS035GRES16Kx05 Spun Kevlar Thread - Tex 35 - Sage Green - Nominal 16 Oz Spl - Case of 5 Sage Green Color Chip $368.79 15
FRS035GRES16Kx10 Spun Kevlar Thread - Tex 35 - Sage Green - Nominal 16 Oz Spl - Case of 10 Sage Green Color Chip $662.79 2
FRS040ORAR04Ng Spun Nomex Thread - Tex 40 - Chinese Rust - Nominal 4 Oz Spool - 2500 Yards Chinese Rust Color Chip $19.79 6
FRS040RED102Ng Spun Nomex Thread - Tex 40 - Carolina Red - Nominal 2 Oz Spool - 1250 Yards Carolina Red Color Chip $12.79 5
FRS040RED104Ng Spun Nomex Thread - Tex 40 - Carolina Red - Nominal 4 Oz Spool - 2500 Yards Carolina Red Color Chip $19.79 8
FRS040RED204Ng Spun Nomex Thread - Tex 40 - Barn Red - Nominal 4 Oz Spool - 2500 Yards Barn Red Color Chip $19.79 4
FRS040REDP02Ng Spun Nomex Thread - Tex 40 - Raspberry - Nominal 2 Oz - 1250 Yards Raspberry Color Chip $12.79 6
FRS040REDP04Ng Spun Nomex Thread - Tex 40 - Raspberry - Nominal 4 Oz - 2500 Yards Raspberry Color Chip $19.79 3
FRS040REDQ02Ng Spun Nomex Thread - Tex 40 - Wild Fire - Nominal 2 Oz Spool - 1250 Yards Wild Fire Color Chip $12.79 3
FRS040REDQ04Ng Spun Nomex Thread - Tex 40 - Wild Fire - Nominal 4 Oz Spool - 2500 Yards Wild Fire Color Chip $19.79 3
FRS045NATL02KRT Spun Kevlar Thread - Tex 45 - Natural Yellow - Nominal 2 Oz Spool - 1250 Yards - RIGHT TWIST Natural Yellow Color Chip $23.79 2
FRS045NATL04KRT Spun Kevlar Thread - Tex 45 - Natural Yellow - Nominal 4 Oz Spool - 5000 Yards - RIGHT TWIST Natural Yellow Color Chip $70.79 15
FRS050BRO101K Spun Kevlar Thread - Tex 50 - Brown - Nominal 1 Oz Spool - 687 Yards Brown Color Chip $16.79 3
FRS050BRO102K Spun Kevlar Thread - Tex 50 - Brown - Nominal 2 Oz Spool - 1375 Yards Brown Color Chip $23.79 6
FRS050BRO104K Spun Kevlar Thread - Tex 50 - Brown - Nominal 4 Oz Spool - 2750 Yards Brown Color Chip $38.79 5
FRS050BRO108K Spun Kevlar Thread - Tex 50 - Brown (SK111) - Nominal 8 Oz Cone - 5500 Yards Brown Color Chip $62.79 4
FRS050BRO108Kx05 Spun Kevlar Thread - Tex 50 - Brown (SK111) - Nominal 8 Oz Cone - Case of 5 Brown Color Chip $275.79 1
FRS050BRO108Kx10 Spun Kevlar Thread - Tex 50 - Brown (SK111) - Nominal 8 Oz Cone - Case of 10 Brown Color Chip $488.79 1
FRS050REDS01K Spun Kevlar Thread - Tex 50 - Scarlet - Nominal 1 Oz Spool - 687 Yards Scarlet Color Chip $16.79 3
FRS050RedS02K Spun Kevlar Thread - Tex 50 - Scarlet - Nominal 2 Oz Spool - 1375 Yards Scarlet Color Chip $23.79 2
FRS050WHIN01N Spun Nomex Thread - Tex 50 - Natural White - Nominal 1 Oz Spool - 687 Yards White Color Chip $15.79 3
FRS050WHIN02N Spun Nomex Thread - Tex 50 - Natural White - Nominal 2 Oz Spool - 1375 Yards White Color Chip $24.79 5
FRS050WHIN04N Spun Nomex Thread - Tex 50 - Natural White - Nominal 4 Oz Spool - 2750 Yards White Color Chip $42.79 3
FRS050WHIN16N Spun Nomex Thread - Tex 50 - Natural White (NMX1000) - Nominal 16 Oz Spool White Color Chip $120.79 6
FRS060BLAC01K Spun Kevlar Thread - Tex 60 - Black - Nominal 1 Oz Spool - 375 Yards Black Color Chip $22.29 7
FRS060BLAC02K Spun Kevlar Thread - Tex 60 - Black - Nominal 2 Oz Spool - 750 Yards Black Color Chip $31.49 8
FRS060BLAC04K Spun Kevlar Thread - Tex 60 - Black - Nominal 4 Oz Spool - 1500 Yards Black Color Chip $51.19 7
FRS060BLAC12K Spun Kevlar Thread - Tex 60 - Black - Nominal 12 Oz Spool - 6000 Yards Black Color Chip $138.69 3
FRS060GREX01N Spun Nomex Thread - Tex 60 - Foliage Green (504) - Nominal 1 Oz Spool - 500 Yards Foliage Green Color Chip $8.79 3
FRS060GREX02N Spun Nomex Thread - Tex 60 - Foliage Green - Nominal 2 Oz Spool - 1000 Yards Foliage Green Color Chip $12.79 5
FRS060GREX04N Spun Nomex Thread - Tex 60 - Foliage Green (504) - Nominal 4 Oz Spool - 2000 Yards Foliage Green Color Chip $19.79 8
FRS060GREX12N Spun Nomex Thread - Tex 60 - Foliage Green (504) - Nominal 12 Oz Spool - About 6000 Yards Foliage Green Color Chip $19.99 795
FRS060GREX12Nx10 Spun Nomex Thread - Tex 60 - Foliage Green - Nominal 12 Oz - 6000 Yards Each - Case of 10 Foliage Green Color Chip $169.99 2
FRS060NATL01K Spun Kevlar Thread - Tex 60 - Natural - Nominal 1 Oz Spool - 375 Yards Natural Yellow Color Chip $22.29 3
FRS060NATL02K Spun Kevlar Thread - Tex 60 - Natural - Nominal 2 Oz Spool - 750 Yards Natural Yellow Color Chip $31.49 4
FRS060NATL04K Spun Kevlar Thread - Tex 60 - Natural - Nominal 4 Oz Spool - 1500 Yards Natural Yellow Color Chip $51.19 6
FRS060NATL12K Spun Kevlar Thread - Tex 60 - Natural - Nominal 12 Oz Spool - 6000 Yards Natural Yellow Color Chip $138.69 15
FRS060ORA201N Spun Nomex Thread - Tex 60 - Orange - Nominal 1 Oz Spool Orange Color Chip $16.79 4
FRS060ORA202N Spun Nomex Thread - Tex 60 - Orange - Nominal 2 Oz Spool Orange Color Chip $23.79 3
FRS060RED301N Spun Nomex Thread - Tex 60 - Wine (Looks Magenta) - Nominal 1 Oz Spool Wine / Magenta Color Chip $16.79 16
FRS060RED302N Spun Nomex Thread - Tex 60 - Wine (Looks Magenta) - Nominal 2 Oz Spool Wine / Magenta Color Chip $23.79 17
FRS060Red304N Spun Nomex Thread - Tex 60 - Wine (Looks Magenta) - Nominal 4 Oz Spool Wine / Magenta Color Chip $38.79 5
FRS060RED316N Spun Nomex Thread - Tex 60 - Wine (Looks Magenta) - Nominal 16 Oz Spool Wine / Magenta Color Chip $120.79 9
FRS060YEL102K Spun Kevlar Thread - Tex 60 - Yellow (Natural) - Nominal 2 Oz Spool - 1000 Yards Natural Yellow Color Chip $23.79 1
FRS070PUR901N Spun Nomex Thread - Tex 70 - Blue Tint Purple - Nominal 1 Oz Spool - 375 Yards Blue Tint Purple Color Chip $16.79 2
FRS070PUR902N Spun Nomex Thread - Tex 70 - Blue Tint Purple - Nominal 2 Oz Spool - 750 Yards Blue Tint Purple Color Chip $23.79 7
FRS070PUR904N Spun Nomex Thread - Tex 70 - Blue Tint Purple - Nominal 4 Oz Spool - 1500 Yards Blue Tint Purple Color Chip $38.79 4
FRS070PUR908N Spun Nomex Thread - Tex 70 - Blue Tint Purple - Nominal 8 Oz Cone - 3000 Yards Blue Tint Purple Color Chip $62.79 7
FRS070PUR908Nx05 Spun Nomex Thread - Tex 70 - Blue Tint Purple - Nominal 8 Oz Cone - Case of 5 Blue Tint Purple Color Chip $275.79 1
FRS070PUR908Nx10 Spun Nomex Thread - Tex 70 - Blue Tint Purple - Nominal 8 Oz Cone - Case of 10 Blue Tint Purple Color Chip $488.79 1
FRS070YEL101K Spun Kevlar Thread - Tex 70 - Yellow (Natural) - Nominal 1 Oz Spool Natural Yellow Color Chip $16.79 1
FRS070YEL102K Spun Kevlar Thread - Tex 70 - Yellow (Natural) - Nominal 2 Oz Spool Natural Yellow Color Chip $23.79 5
FRS070YEL104K Spun Kevlar Thread - Tex 70 - Yellow (Natural) - Nominal 4 Oz Spool Natural Yellow Color Chip $38.79 6
FRS090RED300N Spun Nomex Thread - Tex 90 - Fire Red - 1/2 Oz Spool - 156 Yards Fire Red Color Chip $12.79 7
FRS090RED301N Spun Nomex Thread - Tex 90 - Fire Red - Nominal 1 Oz Spool - 312 Yards Fire Red Color Chip $16.79 7
FRS090RED302N Spun Nomex Thread - Tex 90 - Fire Red - Nominal 2 Oz Spool - 625 Yards Fire Red Color Chip $23.79 5
FRS090Red304N Spun Nomex Thread - Tex 90 - Fire Red - Nominal 4 Oz Spool - 1250 Yards Fire Red Color Chip $38.79 5
FRS090Red316N Spun Nomex Thread - Tex 90 - Fire Red - Nominal 16 Oz Spool - 5000 Yards Fire Red Color Chip $120.79 15
FRS090RED316Nx05 Spun Nomex Thread - Tex 90 - Fire Red - Nominal 16 Oz Cone - Case of 5 Fire Red Color Chip $535.79 2
FRS090RED316Nx10 Spun Nomex Thread - Tex 90 - Fire Red - Nominal 16 Oz Cone - Case of 10 Fire Red Color Chip $950.79 1
FRS135BLAC00K Spun Kevlar Thread - Tex 135 - Black - Nominal 1/2 Oz Spool Black Color Chip $12.79 8
FRS135BLAC01K Spun Kevlar Thread - Tex 135 - Black - Nominal 1 Oz Spool Black Color Chip $16.79 7
FRS135BLAC02K Spun Kevlar Thread - Tex 135 - Black - Nominal 2 Oz Spool Black Color Chip $23.79 7
FRS135BLAC04K Spun Kevlar Thread - Tex 135 - Black - Nominal 4 Oz Spool Black Color Chip $38.79 6
FRS135BLAC16K Spun Kevlar Thread - Tex 135 - Black (SK170) - Nominal 16 Oz Cone Black Color Chip $120.79 46