Description
Overview:
The Mason Mate Rubber Anchor Nut, size M5 x 40, is a black rubber expanding fastener designed for reliable fixing into panels, hollow sections, and other cavities. The M5 internal thread takes a standard M5 screw or bolt, and the 40 mm rubber body compresses and expands as the screw is tightened to create a firm, rattle-free hold. It is suited to construction, plant, and garden machinery, helping secure guards, cowls, brackets, and housings where access behind the panel is limited. The rubber body grips without damaging coatings and helps isolate vibration. Sold individually so you can order the exact quantity required. Manufacturer reference: 903 2394 50PK. Also available across a wider size range from M4 x 11 to M12 x 75.
Key Features:
- Size M5 x 40 expanding rubber anchor for use with standard M5 fasteners
- Expands inside cavities and thin-walled sections for a secure mechanical hold
- Vibration damping reduces noise and stress on fixings and panels
- No rear access needed once the hole is drilled, ideal for blind fixings
- Suitable for plastics, composites, thin sheet metal, and other delicate substrates
- Durable black rubber construction for dependable, long-lasting service
- Straightforward to fit with basic hand tools; removable and replaceable
- Sold individually for precise quantity control on any job
- Size range available: M4 x 11 to M12 x 75
Typical Applications:
Mounting brackets, guards, control boxes, nameplates, cable clips, and accessories on generators, compressors, mowers, compactors, and other site or garden equipment. Useful for repairs where captive nuts or rivet nuts are impractical, and for fixing into plastic fairings, thin sheet, or box-section frames. Provides added vibration isolation for panels and enclosures.
Also known as:
Often referred to as a rubber nut, expansion nut, cavity anchor, well nut, or rubber rivet nut. These terms describe the same type of expanding rubber insert that provides a secure threaded fixing in blind or hollow locations.
Product Specifications
| L&S Part No. | 903 2394 |
|---|---|
| Manufacturer | Masonmate |
| OEM No. | 903 2394 50PK |
| Unit of Sale | Each |
| Machine Type | Handheld Construction Tools |
| Key Features | - M5 x 40 expanding rubber anchor for standard M5 fasteners - Expands in cavities for secure mechanical hold - Vibration damping reduces noise and stress - No rear access needed, ideal for blind fixings - Suitable for plastics, composites, and thin sheet metal |
