Polyester Thread - Size 554 / Tex 600 / Govt. 8-Cord - White - Service Thread - Bonded
Size 554 (Tex 600) polyester thread is our heaviest thread with a 1 mm diameter. It requires a heavy duty machine with a size 330/30 to 360/32 needle.

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

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