M8 M10 M12 Hex Flange Head Concrete Screw Anchor – Thunder Masonry Self-Tapping Bolt for Concrete & Brickwork
Our Hex Flange Head Concrete Screw Anchors are high-performance self‑tapping fasteners designed to deliver strong, reliable anchoring in concrete, masonry, and brick substrates. Featuring a heat‑treated hardened body and dual high‑low self‑tapping threads, these concrete screws offer quick, easy installation and dependable performance for both light and heavy‑load applications.
Unlike traditional expansion anchors, these concrete screw bolts can be easily removed without damaging the base material, making them ideal for temporary or permanent installations.
Key Features & Benefits
The specially designed double external thread cuts into concrete quickly and effortlessly, reducing installation time while ensuring a secure grip.
Heat treatment delivers enhanced hardness and durability, allowing the screw to withstand high torque and heavy loads without deformation.
Unlike expansion bolts, these anchors can be unscrewed and removed after installation, leaving no permanent damage to the concrete or masonry base.
Zinc Plated (ZP/ZYP), Hot-Dip Galvanized, Dacromet Coated — excellent oxidation, rust, and chemical corrosion resistance for indoor/outdoor use.
Offered in metric sizes (M8, M10, M12) with hex flange heads, serrated washer optional, and a full range of lengths.
Product Specifications
Precision-engineered metric concrete screws with robust material grades and multiple surface options. Refer to the technical drawing for detailed dimensions (core diameter, thread pitch, flange diameter, etc.).
| Product Name | Concrete Screw Anchor / Masonry Self-Tapping Bolt |
|---|---|
| Fastener Type | Concrete Screws / Thunder Anchors |
| Material | Carbon Steel / Stainless Steel (on request) |
| Grade | 8.8 Grade (or higher on request) |
| Thread Size | M8, M10, M12 |
| Thread Type | Self-Tapping, High-Low Dual Thread |
| Head Type | Hex Flange Head (Serrated Washer Optional) |
| Surface Treatment | Galvanized, Hot-Dip Galvanized, Dacromet, ZP/ZYP |
| Application | Concrete, Cracked Concrete, Masonry, Brickwork |
| Industry Use | Building Construction, Anchoring & Fixing |
| Standard | Metric |
| OEM/ODM | Available |
| Sample | Free samples available when in stock |
| Delivery Time | Within 7-20 days |
| Packaging | Carton + Small Box + Pallet (Custom packaging available) |
* Technical drawing reference: Nominal diameter (M8/M10/M12), overall length L, thread pitch, core diameter d1, cutting diameter, hex wrench size, flange diameter, head height, point length (15° lead angle). Full dimensional catalogs available upon request.
Product Lineup — Hex Flange Concrete Screw Anchor Series
Complete series available in M8, M10, M12, various lengths, and multiple coating options. Suitable for temporary and permanent structural anchoring in high-strength concrete and brickwork.
Applications
These concrete screw anchors are widely used for:
- Anchoring fixtures, brackets, and structural elements in concrete and masonry
- Temporary and permanent installations in construction projects
- Fixing railings, handrails, and mechanical equipment
- Applications where removal or repositioning may be required
- Cracked concrete & brickwork fixings
Installation Steps — Quick & Reliable
Simple process: drill pilot hole (correct diameter), clean dust, drive the self-tapping anchor with standard hex driver. No expansion force, no edge distance concerns. Removable without damaging base material.
Why Choose Us
- Verified manufacturer specializing in concrete anchors and fasteners — strict quality control
- Competitive pricing with flexible OEM/ODM services (custom sizes, coatings, and packaging)
- Samples available for testing; fast lead times (7–20 days) and reliable delivery
- Dacromet, hot-dip galvanized, zinc plated surface options for extreme environments
- Engineered for high torque and heavy loads without deformation
📌 Technical note: Core diameter, thread cutting depth, flange geometry optimized for pull-out resistance in cracked and non-cracked concrete. Custom engineered solutions upon request.
Direct Contact Channels
- One-stop service: design, customization, production, and global delivery
- OEM/ODM solutions for industrial and export-oriented buyers
