When securing structures or equipment to concrete surfaces, reliability and strength are essential. A heavy duty expansion bolt designed specifically for concrete applications offers a dependable anchoring solution for a wide range of uses—from commercial construction to industrial installations.
With growing demand for factory direct supply, many buyers now prefer suppliers that support small order quantities and offer fast delivery without compromising on product quality. Expansion bolts, particularly in sizes like 20mm x 75mm, meet these needs efficiently and affordably.
What is a Heavy Duty Expansion Bolt for Concrete?
An expansion bolt is a type of mechanical anchor used to attach heavy items securely to solid materials such as concrete, brick, or stone. It works by expanding within a pre-drilled hole, applying outward pressure to grip the concrete surface tightly. This provides excellent resistance to both shear and tensile forces.
In heavy-duty applications, stainless steel variants like 316/A4 are often preferred for their corrosion resistance, especially in outdoor or high-humidity environments.
Key Features
✅ High Load Capacity – Designed to bear heavy weights, these bolts are ideal for industrial and structural applications.
✅ Corrosion Resistance – 316 stainless steel models offer long-lasting durability in aggressive environments.
✅ Precise Sizing – Available in standard dimensions like 20mm x 75mm, which are suitable for deep anchoring in concrete substrates.
✅ Easy to Install – Requires just a hammer drill and wrench for most setups.
✅ Factory Direct Availability – Streamlined from manufacturer to buyer, reducing lead times and enabling fast delivery, even for small order quantities.
Common Applications
- Structural Steel Mounting
- Concrete Wall Fixtures
- HVAC Equipment Installation
- Heavy-Duty Shelving and Racks
- Security Systems and Outdoor Units
Installation Steps
- Drill a Hole – Match the hole diameter and depth to the bolt size (e.g., 20mm x 75mm).
- Clean the Hole – Remove dust for a secure grip.
- Insert the Bolt – Push the bolt into the hole.
- Tighten the Nut – Expands the sleeve and anchors the bolt securely.
- Test for Stability – Ensure the fixture is firm and load-bearing.
Why Choose Factory Direct Expansion Bolts?
- Short Lead Time – No middleman delays; direct shipping supports fast project timelines.
- Low MOQ Friendly – Supports small batch purchasing for maintenance, DIY, or specialized jobs.
- Consistent Quality – Direct from the source means better process control and product reliability.
Conclusion
For construction professionals, contractors, and engineers, a heavy duty expansion bolt for concrete is a must-have anchoring tool. Whether you’re working on a small-scale renovation or a large infrastructure project, opting for factory direct supply ensures you receive high-performance products with quick turnaround—no matter the order size.
Ready to upgrade your anchoring system? Choose high-strength expansion bolts, available in sizes like 20mm x 75mm, built for concrete and built to last.