Product Description
Rubber well nuts with captive brass threaded inserts for creating secure, vibration-resistant fixings in thin panels, hollow sections and cavity materials.
Each fixing comprises a flanged rubber sleeve with an internally threaded brass insert. When a matching metric bolt is tightened, the rubber body compresses and expands behind the panel to create a secure fixing without requiring access to the rear.
- Product type: Rubber well nut / expanding rubber insert
- Insert material: Brass
- Body material: Rubber
- Thread sizes available: M3, M4, M5, M6 and M8
- Metric coarse threads
- Provides vibration resistance and electrical isolation
- No specialist installation tool required
- Suitable for panels, hollow sections, cavity walls and hollow blocks
- Available in pack sizes from 1 to 1000
M3 thread size will fit into an 8mm hole.
M4 thread size will fit into an 8mm hole
M5 thread size will fit into an 9.5mm hole
M6 thread size will fit into an 12.5mm hole
M8 thread size will fit into an 16mm hole
| A | B | C | D | E | F |
| M3 X 22 | 22mm | 11mm | * | 0.5 | 8.5 - 15.0mm |
| M4 X 12 | 12mm | 11mm | * | 0.7 | 0.4 - 4.0mm |
| M4 X 22 | 22mm | 11mm | * | 0.7 | 8.5 - 14.0mm |
| M5 X 14 | 14mm | 12.7mm | * | 0.8 | 0.4 - 4.9mm |
| M5 X 20 | 20mm | 14mm | * | 0.8 | 7.9 - 11.4mm |
| M5 X 25 | 25mm | 14mm | * | 0.8 | 7.9 - 15.0mm |
| M6 X 16 | 16mm | 16mm | * | 1 | 0.4 - 4.0mm |
| M6 X 21 | 21mm | 19.05mm | * | 1 | 0.8 - 4.7mm |
| M8 X 18 | 18mm | 21.50mm | * | 1.25 | 0.4 - 4.0mm |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.
