Product Introduction
Hex Head Concrete Screw Anchors are mechanical fasteners engineered for direct installation into concrete, brick, and masonry substrates without requiring expansion plugs or anchors.
Technical Specifications
| Parameter | Specification |
| Diameter (d) | M6, M8, M10, M12, M14 |
| Length (L) | 40 mm – 200 mm |
| Head Type | Hex Washer Head |
| Material | Carbon Steel / Stainless Steel A2 / A4 |
| Surface Finish | Zinc Plated / Ruspert / Hot-Dip Galvanized |
| Standard / Approval | ETA / ICC-ES / GB/T Enterprise Standard |
| Installation Method | Direct drilling with impact driver or wrench |
Key Features
Hex washer head ensures stable tool engagement and reduces driver slippage during tightening.
Hardened thread geometry cuts directly into concrete and masonry without expansion plugs or sleeves.
Removable screw design allows disassembly and replacement during maintenance or repositioning.
One-piece construction eliminates separate anchor components, reducing installation steps and part inventory.
Direct thread engagement minimizes expansion stress on the base material compared with conventional expansion anchors.
Applications
Structural steel mounting
HVAC and electrical installations
Guardrails and handrails
Machinery and equipment installation
Concrete walls, floors, and ceilings
Brick and block masonry
Standards and Compliance
ETA (Europe): Technical assessment for applications in cracked and non-cracked concrete.
ICC-ES (USA): Evaluation criteria for concrete screw anchors used in North American projects.
ISO References: ISO 1479 and ISO 15480 cover hex head tapping screws and concrete screw classifications.
GB/T: Manufactured according to enterprise standards with mechanical property testing where applicable.
Installation Overview
Select appropriate anchor diameter and length based on substrate and load requirements.
Drill a pilot hole using recommended diameter and depth.
Insert the hex head screw and drive using an impact driver or wrench.
Tighten to specified torque while ensuring proper thread engagement.
The screw can be removed for maintenance or repositioning when required.
Blow the dust out of the hole before insertion.
Quality and Manufacturing Assurance
Materials are selected to meet specified mechanical property requirements.
Dimensional and visual inspections are carried out during production.
Mechanical property testing can be performed according to applicable standards or customer requirements.
OEM and ODM manufacturing services are available for customized specifications.
Frequently Asked Questions
Q: Difference between concrete screw anchors and expansion anchors?
A: Concrete screw anchors fix via direct thread engagement; expansion anchors rely on radial expansion in the drilled hole.
Q: How to select the correct size?
A: Choose diameter and length based on substrate, load, and installation depth per engineering specs.
Q: Suitable for concrete and masonry?
A: Yes; compatible with concrete, brick, and block masonry meeting required strength.
Q: Are certified load data required?
A: For structural applications, verify performance using ETA or ICC-ES documentation; inspection records are available.
Q: Can they be used overhead?
A: Overhead use depends on load, substrate, and compliance with technical approvals and load tables.
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