Genuine Vintage Singer Pressure Regulating Thumb Screw - Part # 51228 - Chrome Finish

This genuine original SIMANCO pressure regulating thumb screw (commonly called presser foot adjuster) is an essential component that controls the amount of pressure applied to the presser foot in your vintage Singer sewing machine. SIMANCO (Singer Manufacturing Company) stamped parts represent authentic Singer quality and precision engineering. In excellent pre-owned condition with chrome finish, this authentic Singer part maintains the original specifications for reliable performance.

What the Pressure Regulating Thumb Screw Does

The pressure regulating thumb screw is a critical adjustment component in the presser foot pressure system:

• Controls Pressure: Adjusts the amount of pressure the presser foot applies to fabric during sewing
• Fabric Customization: Allows you to increase pressure for heavy fabrics or decrease pressure for delicate materials
• Works with Spring: Regulates the tension of the presser bar spring (part #80011) to fine-tune pressure
• Ensures Proper Feeding: Correct pressure adjustment ensures even fabric feeding and professional stitch quality

When to Replace Your Pressure Regulating Thumb Screw

Common issues requiring thumb screw replacement include:

• Stripped Threads: Threads become worn or damaged, preventing proper adjustment
• Damaged Knob: Thumb screw knob becomes damaged or difficult to turn
• Missing Part: Lost during machine disassembly or restoration
• Restoration Projects: Replacing worn or damaged components to restore vintage machines to working condition

Compatible Singer Models

15-86, 15-87, 15-88, 15-89, 15-90, 15-91, 15-96, 15-97

Specifications

• Part Number: 51228
• Material: Steel with chrome finish
• Finish: Chrome (bright, polished finish)
• Condition: Pre-owned, excellent condition
• Authenticity: Genuine original SIMANCO (Singer Manufacturing Company) part

Genuine vintage SIMANCO pressure regulating thumb screw in excellent pre-owned condition with chrome finish. Essential replacement for stripped or damaged presser foot adjusters.