Description
Overview:
These 4 mm threaded rivet nuts are smooth-body inserts used to create strong, reusable machine threads in thin sheet where tapping is not possible and rear access is limited. Made from durable metal with a flanged head, they anchor securely in panels and brackets without distorting the material. Commonly fitted to guards, panels, and housings on construction and garden machinery, they suit everyday repairs and new assemblies alike. Installed with a suitable rivet-nut setting tool using an M4 mandrel, they accept standard M4 bolts and screws. Supplied in a pack of 50 for efficient stocking and repeat tasks. Manufacturer Part Number: 903 1676.
Key Features:
- M4 (4 mm) threaded insert for creating strong internal threads in thin materials
- Smooth-body design for easy hole alignment and reduced risk of panel damage
- Flanged head to spread load and resist pull-through on softer or thin sheet
- Blind installation from one side; ideal where rear access is blocked
- Works with manual or powered rivet-nut tools using an M4 mandrel
- Durable metal construction suitable for regular workshop and site use
- Provides a clean, repeatable thread for standard M4 bolts and machine screws
- Useful for repairs of worn or stripped threads in existing holes
- Suitable for steel, aluminium, and certain plastics or composites (with correct hole prep)
- Pack of 50 supports multiple fittings and spares management
Typical Applications:
Adding or restoring threads in body panels, covers, guards, brackets, control boxes, and frames on mowers, compactors, generators, pressure washers, and small plant. Ideal for fastening accessories, clips, and brackets to thin sheet without welding or tapping. Useful across fabrication, maintenance, and light assembly tasks in the workshop or on site.
Also known as:
Nut rivets, rivnuts, nutserts, blind threaded inserts, blind nuts, captive threaded inserts, M4 threaded inserts, smooth-body nutserts.
Product Specifications
| L&S Part No. | 903 1676 |
|---|---|
| Unit of Sale | Pack of 50 |
| Key Features | - M4 threaded insert for strong internal threads in thin materials - Flanged head resists pull-through on thin sheets - Blind installation ideal where rear access is blocked - Compatible with manual or powered rivet-nut tools - Pack of 50 for multiple fittings and spares management |


