Description
Overview:
The M8 x 1.25mm Thread Repair Insert - Pack of 25 is a genuine part designed to restore damaged or stripped M8 threads to a durable, full-strength finish. Each insert is formed from corrosion-resistant steel wire and installs into a specially tapped hole; the coil compresses during fitting and then springs outward to lock in place. The result is a hard-wearing female thread that often exceeds the strength of the original, especially in softer materials such as aluminium castings. These inserts are widely used on engines, gearboxes, housings, and fixtures across automotive, machinery, plant, and garden equipment. Suitable for workshop repairs and on-site maintenance, they help extend service life and prevent costly component replacement.
Key Features:
- Genuine Part for dependable fit and performance
- Size: M8 x 1.25mm (standard M8 coarse pitch) for common fasteners
- Corrosion-resistant steel wire construction for longevity
- Compression-and-expansion design locks the insert in the parent material
- Produces a strong, wear-resistant thread in aluminium and other soft alloys
- Helps prevent thread seizure and galling in repeated assembly cycles
- Stable under vibration and thermal cycling in demanding environments
- Compatible with standard thread repair tooling (M8 x 1.25 STI tap and insertion tool)
- Clean installation with minimal material removal
- Cost-effective pack of 25 for multiple repairs or fleet maintenance
Typical Applications:
Restoring worn or stripped M8 threads in engine casings, covers, brackets, manifolds, gearboxes, pump housings, fixtures, jigs, guards, and frames. Common in automotive and motorcycle repair, construction plant servicing, agricultural machinery, generators, compressors, and garden equipment where aluminium or magnesium components are prone to thread damage.
Also known as:
Wire thread insert, screw thread insert (STI), coil insert, helicoil-type insert, thread repair coil. These terms refer to the same style of spring-steel thread reinforcement used to rebuild damaged internal threads to the original size.
Product Specifications
| L&S Part No. | 355 1576 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Key Features | - M8 x 1.25mm size for standard fasteners - Corrosion-resistant steel wire for durability - Compression design locks insert in place - Compatible with M8 x 1.25 STI tools - Pack of 25 for multiple repairs |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£83.17 £69.31 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£83.68 £69.73
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£83.17 £69.31 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£83.68 £69.73
