Description
The Hobson Conxtruct Class 8.8 External Hex Chemical Anchor Stud Kit is designed for high-performance chemical anchoring applications in concrete and masonry substrates.
Manufactured from high-tensile Class 8.8 steel and finished in hot dip galvanising to AS 1214, these chemical anchor studs provide excellent load capability together with increased corrosion protection.
Unlike conventional notched chemical studs, the absence of a notch provides greater flexibility in drilling depth and the thickness of the member being anchored. This makes the range particularly useful where deeper embedment or greater installation flexibility is required.
The stud incorporates a chisel point and an external hex drive, allowing the anchor to be driven during installation. Selected External Hex Drive Stud Anchors are supplied with an external hex drive in each pack.
As a chemical anchoring system, the studs are particularly suited to applications requiring non-expansion type fasteners, including installations where closer edge distances and spacing are required.
Key Features
- High-tensile chemical anchor stud
- Class 8.8 steel
- External hex drive
- Chisel point
- No-notch design
- Extended lengths available for deeper embedment
- Flexible drilling depth
- Allows flexibility in thickness of the member being anchored
- Excellent load capability
- Vibration resistant
- Suitable for chemical anchoring systems
- Non-expansion anchoring
- Hot dip galvanised
- Coating specification AS 1214
- Supplied with Class 8 nut
- Nut specification DIN 934
- Supplied with hardened washer
- Washer specification HV 200 / DIN 125
- Available from M8 to M24
Applications
Suitable for:
- Fixing to concrete substrates
- Fixing to masonry substrates
- Chemical anchoring applications
- Projects requiring non-expansion type fasteners
- Applications requiring closer edge distances
- Applications requiring closer anchor spacing
- Deep embedment applications
- Structural and construction fixing
- Applications requiring flexible drilling depth
- Fixing thicker members to concrete or masonry
Available Sizes & Part Numbers
| Size | Length | Part Number | QFind |
|---|---|---|---|
| M8 x 110mm | 110mm | MCA88GPM080110H | MCA152 |
| M10 x 130mm | 130mm | MCA88GPM100130H | MCA153 |
| M12 x 160mm | 160mm | MCA88GPM120160H | MCA154 |
| M12 x 220mm | 220mm | MCA88GPM120220H | MCA136 |
| M12 x 300mm | 300mm | MCA88GPM120300H | MCA137 |
| M16 x 190mm | 190mm | MCA88GPM160190H | MCA155 |
| M16 x 220mm | 220mm | MCA88GPM160220H | MCA138 |
| M16 x 260mm | 260mm | MCA88GPM160260H | MCA139 |
| M16 x 300mm | 300mm | MCA88GPM160300H | MCA140 |
| M16 x 350mm | 350mm | MCA88GPM160350H | MCA141 |
| M16 x 500mm | 500mm | MCA88GPM160500H | MCA142 |
| M20 x 260mm | 260mm | MCA88GPM200260H | MCA156 |
| M20 x 350mm | 350mm | MCA88GPM200350H | MCA143 |
| M20 x 400mm | 400mm | MCA88GPM200400H | MCA144 |
| M20 x 480mm | 480mm | MCA88GPM200480H | MCA145 |
| M24 x 300mm | 300mm | MCA88GPM240300H | MCA157 |
Technical Specifications
| Property | Specification |
|---|---|
| Brand | Hobson |
| Range | Conxtruct |
| Product Type | Chemical Anchor Stud Kit |
| Stud Type | External Hex Drive / Chisel Point / No Notch |
| Material | High-Tensile Steel |
| Property Class | Class 8.8 – AS/NZS 4291.1 |
| Finish | Hot Dip Galvanised |
| Coating Specification | AS 1214 |
| Nut | Class 8 |
| Nut Standard | DIN 934 |
| Washer | Hardened HV 200 |
| Washer Standard | DIN 125 |
| Sizes | M8 – M24 |
| Length Range | 110 – 500mm |
| Installation Type | Chemical Anchoring |
| Base Material | Concrete / Masonry |
External Hex Drive Dimensions
| Size | Hex Drive AF | Hex Drive Height |
|---|---|---|
| M8 | 5mm | 7mm |
| M10 | 7mm | 7mm |
| M12 | 8mm | 8mm |
| M16 | 12mm | 8mm |
| M20 | 12mm | 9mm |
| M24 | 13mm | 9mm |
Mechanical Properties
The supplied technical data lists the following stud tensile properties:
| Size Range | Stud Tensile Strength UTS |
|---|---|
| M8 – M16 | 800 MPa |
| M20 – M24 | 830 MPa |
Why Choose the Conxtruct External Hex Chemical Anchor Stud?
The key advantage of this range is the combination of a Class 8.8 high-tensile chemical stud with an external hex drive and no-notch design.
Removing the conventional notch provides greater flexibility over drilling depth and embedment, while the extended-length options allow the studs to accommodate thicker fixtures and deeper anchoring requirements.
Because the system is intended for chemical anchoring, it is also particularly useful where non-expansion fixing, closer edge distances or reduced anchor spacing are required.
