Top Shelf Heavy Duty 18-8 Stainless Steel Threaded Inserts Size 12-24 Unified Coarse For Soft Metal Tap Hole Repair Bulletproof Helix Coil Fasteners Bulk Pack One Thousand Pieces

Stainless Steel Threaded Inserts For Hole Repair
✔️ #12-24 thread pitch, solid 18-8 stainless build, 1k quantity box

These coil-style fasteners strengthen stripped screws and rebuild worn mounting points in aluminum, brass, and lightweight alloys. Mechanics, fabricators, and home DIYers find them handy for fixing bad threads without replacing entire parts.

✅ #12-24 unified coarse thread profile for standard hardware compatibility
✅ 18-8 stainless steel construction rated for heat up to 800 degrees fahrenheit
✅ Internal diamond-wound spring design expands to grip tapped holes tightly
✅ Holds 0.216 inch thread engagement depth with room for repeated install cycles

💡 What do threaded inserts actually solve in damaged metal parts?
These helical coils reset stripped screw channels in light alloys and castings so you can reuse original mounts.
- Reinforce worn bolt slots in aluminum brackets where standard tapping fails under torque
- Lock securely inside drilled-out holes thanks to the 18-8 stainless spring-back tension
- Handle constant engine vibration and highway road shakes without backing loose

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