This thread is exceptionally strong which makes it great for seaming. It is a nylon twisted multifilament bonded and a nylon 6.6 bonded sewing thread.
Nylon Thread - Size 69 / Tex 70
Thread - Nylon/Polyester
100% Bonded Nylon Super sewability Ideal for upholstery, footwear, handbags, leather, tarps, belts, orthopedic devices and book binding High tensile
Tex 70 Premium Bonded Nylon Sewing Thread #69 - Beaver Brown 300m
69 Upholstery Thread TEX-70 Bonded Nylon 8 oz. Made in The U.S.A (Black 31002) Free with One Piece Galaxy Supply 5 Seam Ripper.
69 Nylon Thread for sale
Thread - Nylon/Polyester
American Plastics
Bonded-69 Nylon Tex 70 Thread (THDNYLB69)
T70#69 Bonded Nylon Sewing Thread - 1500 Yard Spool -(White+Black)2PCS
Cutex Tex 70 Bonded Nylon Thread #69, 6000 Yards Spool for Leather Upholstery- White