Description
Overview:
The M5 x 0.8mm Thread Repair Insert - 25 Pack is a set of stainless steel wire inserts for restoring stripped or worn M5 threads in metal components. Each insert forms a strong, wear‐resistant internal thread that accepts standard M5 x 0.8mm screws and bolts, helping extend the life of parts rather than replacing them. Made from corrosion‐resistant stainless steel with a bright metallic finish, the inserts compress during installation to lock securely in a specially tapped hole, giving a durable and precise fit. Suitable for construction and garden machinery, workshop equipment, engines, pumps, castings and fixtures, they offer a reliable repair in aluminium, mild steel, and cast iron parts used on items such as lawnmowers, generators, compactors, and small plant tools. Pack contains 25 inserts.
Key Features:
- Metric M5 x 0.8mm coil inserts for standard M5 fasteners
- Stainless steel construction for strength and corrosion resistance in outdoor and workshop environments
- Insert compresses on installation for a tight, vibration‐resistant fit
- Restores damaged threads to full function and often stronger than original base material
- Helps prevent future wear and galling in soft alloys like aluminium
- Suitable for metal components in construction and garden machinery
- Cost‐effective alternative to replacing housings, covers, brackets, and castings
- Clean, accurate internal thread profile for easy bolt engagement and correct torque retention
- Works with standard thread repair tooling for M5 x 0.8mm (drill, STI tap, installation tool, tang break)
- Supplied as a convenient 25‐piece pack for multiple repairs or spares management
Typical Applications:
Repairing stripped M5 threads in engine covers, gearboxes, pump bodies, handles, clamps, and frames on lawnmowers, strimmers, chainsaws, generators, pressure washers, breakers, compactors, and workshop jigs. Ideal for maintenance teams, mobile fitters, and DIY users working on aluminium or steel components exposed to vibration, impact, or frequent strip‐downs.
Also known as:
Helical thread insert, wire thread insert, screw thread insert, helical coil, STI insert (Screw Thread Insert), metric thread repair coil, M5 helicoil, thread restoration insert, stainless thread insert.
Product Specifications
| L&S Part No. | 355 1578 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Key Features | - M5 x 0.8mm thread repair inserts for standard M5 fasteners - Stainless steel construction resists corrosion in harsh environments - Compresses during installation for a secure, vibration-resistant fit - Restores threads in aluminium, mild steel, and cast iron - Pack of 25 inserts for multiple repairs or spares management |


