Description
The HBS-Bolt® Countersunk Blind Install Bolt provides a reliable solution for steel connections where access is available from only one side. Designed for hollow structural sections and blind fixing applications, the HBS-Bolt combines high tensile and shear capacities with a large grip range.
Its countersunk head provides a flush finish while maintaining excellent structural performance. Manufactured from Class 8.8 steel and protected by a hot dip galvanised coating, these bolts are ideal for demanding construction and infrastructure projects.
Features
- One-sided installation
- Countersunk head for flush finishes
- Hot dip galvanised coating
- Class 8.8 steel construction
- High tensile and shear capacities
- Large grip range
- Suitable for blind and hollow steel connections
- Designed for structural applications
- Suitable for square, rectangular and circular hollow sections
- Available in M8, M10, M12 and M16 sizes
Applications
Suitable for:
- Hollow structural sections
- Steel framework
- Gantries
- Bridges
- Stadium structures
- Transmission towers
- Commercial steel construction
- Limited-access connections
- One-sided installation applications
- Structural steel assemblies
Specifications
| Property | Value |
|---|---|
| Product | HBS-Bolt® CSK – Blind Install |
| Head Style | Countersunk |
| Material Grade | Class 8.8 |
| Finish | Hot Dip Galvanised |
| Specification | HEC / Class 8.8 |
| Installation | One-sided |
| Application | Blind and Hollow Steel Connections |
| Sizes | M8–M16 |
Available Sizes
| Part Number | Size | Length | Grip Range |
|---|---|---|---|
| KBB88GKM080050 | M8 | 50mm | 3–22mm |
| KBB88GKM080070 | M8 | 70mm | 22–41mm |
| KBB88GKM080090 | M8 | 90mm | 41–60mm |
| KBB88GKM100050 | M10 | 50mm | 3–22mm |
| KBB88GKM100070 | M10 | 70mm | 22–41mm |
| KBB88GKM100090 | M10 | 90mm | 41–60mm |
| KBB88GKM120055 | M12 | 55mm | 3–25mm |
| KBB88GKM120080 | M12 | 80mm | 25–47mm |
| KBB88GKM120100 | M12 | 100mm | 47–69mm |
| KBB88GKM160070 | M16 | 70mm | 12–29mm |
| KBB88GKM160100 | M16 | 100mm | 29–50mm |
| KBB88GKM160120 | M16 | 120mm | 50–71mm |
Why Choose HBS-Bolt® Countersunk Blind Install Bolts?
HBS-Bolts are engineered for situations where access is limited to one side of the connection. Their large grip range, high strength and corrosion-resistant hot dip galvanised finish make them suitable for structural steelwork and hollow section connections requiring a flush countersunk finish.
