Tension Post Socket Part - Straight Sew

Tension post socket for industrial lockstitch sewing machines. This part controls the upper thread tension to ensure balanced, even stitching. It features an adjustable knob and spring mechanism for precise tension settings. Durable construction makes it suitable for high-speed sewing environments and compatible with most standard lockstitch machine models.

for lockstitch Straight Sew

Kingstar ks8700
Singer 142G-30CFA
Singer 142G-30CEA
Maqi 9800
Juki 8100E 
Gemsy 8900