Source-backed model reference · US

Singer S14-77 / S14-78 / S14-79 / S0230 needle size

The exact machine name and needle system determine fit. This page transcribes the cited manufacturer manual and keeps fabric use, insertion and specialty-needle notes together.

Fabric and size chart

• Light fabric (voile, crepe, georgette) → size #12/80
• Medium fabric (cotton, chino, wool, satin) → size #14/90
• Heavy fabric (denim, jersey, tweed) → size #14/90

Insert and replace

Hold the new needle(s) with the flat surface to the back.

Other manual notes

• Needle pack included: two needles, size #14/90 (SINGER® Overlock needles #2022).
• When using both needles, the left needle sits a little higher than the right (not level like a twin needle).

Manufacturer source

Singer S14-77 Instruction Manual ↗

Source market: English · Checked October 20, 2026. Verify the full model label, fabric and current manual before sewing.

Check another machine · Needle size chart