Rock Solid 18 8 Stainless Steel Threaded Inserts Unc Us Coarse 4 40 X 1D Bolt Repair And Rethreading Kit Hella Durable Hardware Bulk Pack Of One Thousand Pieces For Soft Metals And Workshop Projects Built To Last
Bulk Pack 18 8 Stainless Steel Threaded Inserts For Soft Metals
✔️ UNC 4-40 Coarse Pitch Helical Coil Springs Reinforce Tapped Holes
This kit contains steel coil inserts designed to fix stripped screws and boost holding power in aluminum, plastic, and cast iron parts. Mechanics, home shop builders, and CNC operators rely on them to restore failed threads without drilling out the entire area. The pack includes plenty of spare pieces to keep your workbench stocked for big repairs and repeat jobs across different projects.
✅ 18-8 stainless steel construction resists rust and acid exposure✅ Diamond woven wire design handles heavy loads and heat up to 800°F
✅ Reduces install diameter inside the cut thread for firm friction lock
✅ Includes 1000 coils ready for automotive engine bays or food equipment
💡 How do these helical inserts compare to standard bushings for quick garage fixes?
- They create handy backup threads that bite hard into worn aluminum blocks
- The spring design absorbs vibration so bolts stay tight through road shaking
- You get a clean rethread every time without hunting down specialty tap sets
- Swapping old hardware for fresh coils keeps heavy gear running smooth again