Description
Overview:
The Mason Mate Rubber Anchor Nut, size M10 x 55 (10 mm x 55 mm), is a durable rubber fixing designed to give a strong, vibration-damped hold in cavities and thin materials. When an M10 bolt is tightened, the rubber body compresses and expands to grip the internal walls, creating a secure, blind fixing without needing rear access. This makes it useful across construction, maintenance, and machinery work where access is limited. It's suitable for mounting brackets, guards, panels, accessories, and enclosures on plant and construction equipment, garden machinery, vehicles, and general building fabric. The 55 mm length helps bridge thicker cavities or irregular gaps. Sold individually, it's convenient for repairs, upgrades, and small jobs as well as larger projects where quantities vary.
Key Features:
- Size: M10 x 55 (10 mm x 55 mm) with an internal M10 thread
- Expanding rubber body grips securely inside cavities and hollow sections
- Blind fixing capability - no rear access required once the hole is drilled
- Helps damp vibration and reduce noise compared with rigid anchors
- Gentle on painted, plated, or delicate surfaces; reduces risk of damage
- Reliable hold in common construction materials, including thin sheet, box section, plastics, and composites
- Easy to install using a standard M10 bolt; no special tools needed
- Useful where fixings must be removable without damaging the substrate
- 55 mm length offers extra reach for deeper voids and irregular cavities
- Sold individually for flexible purchasing; suitable for maintenance and one-off repairs
- Also available in a wider size range from M4 x 11 to M12 x 75 for different hole depths and loads
Typical Applications:
Securing panels, guards, cowlings, light brackets, control boxes, cable clips, and signage to thin sheet or hollow sections on plant and site equipment, lawn and garden machinery, generators, HVAC panels, and vehicle bodywork. Ideal where rear access is restricted, or where a vibration-damping fixing is preferred to protect components and reduce loosening in service.
Also known as:
Expansion nut, cavity anchor, rubber nut, well nut, rubber well nut, rubber blind nut, rubber rivet nut, cavity fixing, blind insert, vibration-damping fixing.
Product Specifications
| L&S Part No. | 903 2399 |
|---|---|
| Manufacturer | Masonmate |
| OEM No. | 903 2399 50PK |
| Unit of Sale | Each |
| Key Features | - Size: M10 x 55 mm with internal M10 thread - Expanding rubber body for secure cavity grip - Blind fixing; no rear access needed - Dampens vibration, reducing noise and loosening - Suitable for thin sheet, box section, and composites |
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