1/4 in x 3-1/8 in Star Drive Carbon Steel TopStar Screw 100-Pack for Doors, Windows, Cabinets, and Coffered Ceilings, Quick Hang Built for One-Person Door Setup, Crown Bit or T-20 Bit Compatible

1/4 in x 3-1/8 in Star Drive carbon steel screw
✔️ 100-Pack, Crown Bit or T-20 Bit compatible for quick one-person setup

The TopStar screw is part of the original TopStar fastening system designed to replace shimming and make door hanging a one-person job. It is commonly used for doors, windows, coffered ceilings, and cabinet adjustments, with a dual screw that works as one for precise bidirectional adjustments. Color: Silver. It accepts Crown Bit or T-20 Bit for adjustments.

✅ The Original TopStar Fastening System replaces shimming and makes door hanging a one-person job
✅ Dual screw design works as one for precise bidirectional adjustments
✅ Used for door jams, wooden windows, insulation, paneling, and cabinets
✅ Crown Bit or T-20 Bit compatible for quick adjustments
✅ Silver color, 100-pack included

💡 What is the TopStar fastening system and how does it help one-person door hanging and cabinet adjustments?

It makes on-site adjustments handy and lets a single installer hang doors or adjust cabinetry without extra helpers.

• TopStar system replaces shimming in doors and windows for easier installs
• Dual-screw design enables bidirectional fine tuning
• Works with Crown Bit and T-20 Bit for flexible setup
• Fits jams, wooden windows, insulation, paneling, and cabinets