Description
Serrated Flanged Hex Bolt – Zinc Plated (Class 4.6)
The Serrated Flanged Hex Bolt is a zinc plated structural bolt designed for fast, secure installation in precast concrete and temporary bracing applications.
Manufactured to HEC 1665 / Class 4.6 UTS, this bolt features an integrated serrated flange under the hex head, eliminating the need for a separate washer and improving grip performance during installation.
The serrated flange design distributes load evenly while resisting loosening under vibration.
Ideal for construction and precast panel installations where reliable fastening and later removal are required.
🔧 Applications
Connecting temporary props to precast concrete panels
Securing ferrules cast into concrete
Structural panel installation
Temporary bracing systems
Construction site assembly
⭐ Features & Benefits
Integrated serrated flange (no washer required)
Faster installation compared to flat or square washer setups
Zinc plated for corrosion resistance
Class 4.6 UTS tensile rating
Designed for removal after panel is permanently secured
Load distributing flange head
Cost-effective construction solution
📐 Available Sizes (M20)
| Part Number | Diameter of Flange (D1) | Length (L) | Head Height (H) | Across Flats (AF) |
|---|---|---|---|---|
| BF46ZCM200055 | 43mm | 55mm | 18mm | 30mm |
| BF46ZCM200060 | 43mm | 60mm | 18mm | 30mm |
| BF46ZCM200070 | 43mm | 70mm | 18mm | 30mm |
📊 Technical Specifications
| Property | Specification |
|---|---|
| Thread Size | M20 |
| Finish | Zinc Plated |
| Standard | HEC 1665 |
| Strength Grade | Class 4.6 UTS |
| Head Type | Serrated Flanged Hex |
| Material | Carbon Steel |
