Replacement bobbin case adjusting screw.
An original Bobbin Case is by far the best, so if your spring will not adjust the tension on the Bobbin Case thread (and you've checked to make sure
Bobbin Case Tension Spring
Bobbin Case Tension Adjusting Screw
Innova Bobbin Case Spring Set Screw
Sewing Accessories – Page 9 – Quality Sewing & Vacuum
how to fix a Janome bobbin case from shifting
Bobbin Case Tension Spring 91-010166-05 Adjusting Screw 91-000928-15,91-000390-15 For PFAFF Shoe Machine 591,574,ZJ9610,ZJ9620
Bobbin Case Set Screw 3 / 4 / King
Sewing machine tension guide: everything you need to know about the bobbin tension
249-371A DÜRKOPP ADLER 380 SCREW (2.6x2.3), ArmaStore
Handi Quilter Machine Accessories
Handi Quilter Machine Accessories
Bobbin Case Tension Screw (New) for Singer 221 and 301 – Millard Sewing Center
My bobbin thread is tight and I want to try loosening it, but the screw on the bobbin case is covered with a dark green material that is preventing me from adjusting
Screws & Bolts, Parts 3, Sewing, ArmaStore
Sewing, ArmaStore