Here's the professional translation of your text about dealing with stripped screws:
1. Stripped Screw Head (Driver Won't Grip)
General Solutions
Increase Friction
Place a rubber band, sandpaper, or double-sided tape between the screwdriver and screw head.
Sand the screwdriver tip with coarse grit sandpaper for better grip.
Switch Tools
Use a better-fitting screwdriver (e.g., try a larger/smaller Phillips head).
Use an impact driver (hammer-activated) or locking pliers to grip and turn the screw head.
For Severe Cases
Cut or Drill
Cut off the screw head with wire cutters (then extract the remaining thread with pliers).
Drill a small hole in the center of the screw head to weaken and remove it.
Welding Method
Weld a nut onto the stripped head and use a wrench to turn it (requires welding tools).
2. Stripped Threads (Screw Spins but Won't Hold or Loosen)
Thread Repair (If Removable)
Add Friction Material
Wrap thin copper wire or aluminum foil around threads, or apply threadlocker (e.g., Loctite 243).
For plastic, fill the hole with hot glue, let it harden, and re-tap threads.
Re-tap & Upsize
Use a tap and die set to create larger threads (e.g., upgrade from M3 to M4).
For Seized/Broken Screws
Penetrating Oil + Force
Soak with WD-40 or diesel fuel, then use vise grips to twist out the remains.
Use a screw extractor (left-handed drill bit) to reverse-drill the screw out.
Destructive Removal
Drill out the screw completely and replace with a rivet or bolt.
3. Preventing Stripped Screws
Use Proper Tools – Match screwdriver/bit size exactly; avoid worn tools.
Control Torque – Avoid over-tightening, especially in soft materials (plastic, aluminum).
Anti-Corrosion – Apply grease or anti-seize to threads.
Upgrade Hardware – Use hex/star (Torx) screws (more resistant to stripping than Phillips).
