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High-Performance Wedge Anchors from China Suppliers | Expansion Anchors Factory for Concrete Fastening
Product Overview
| Product Name | Wedge Anchor / Concrete Expansion Anchor |
| Anchor Type | Torque-controlled expansion anchor |
| Thread Type | Metric / UNC / Customized |
| Standards | DIN / ANSI / BS / IFI / Customized |
| Material | Carbon Steel / Stainless Steel (A2-70 / A4-80 – SS304 / SS316) |
| Surface Finish | Zinc Plated / Hot-Dip Galvanized / Stainless Steel (Natural Finish) |
| Size Range | Diameter: M6 – M20 or 1/4" – 3/4" Length: 40mm – 200mm or customized |
Product Components
Each wedge anchor includes:
- Fully threaded shank
- Steel expansion clip
- Hex nut
- Washer
Optional: Flange nut or lock nut depending on application.
Product Features
Strong expansion force ensures solid hold in concrete.
Easy to install – insert into drilled hole and torque down.
Designed for static or vibration-prone environments.
Excellent tensile and shear strength.
Available in corrosion-resistant finishes for indoor/outdoor use.
Suitable for cracked and uncracked concrete.
Applications
Structural steel and support brackets
Machinery and equipment anchoring
Handrails, guardrails, and base plates
Pipe supports and HVAC mounting
Industrial shelving and racking
Concrete wall or floor anchoring
Installation Guide
Drill a hole to the correct diameter and depth.
Clean out the hole thoroughly.
Insert the anchor through the fixture and into the hole.
Hammer to set the anchor firmly if necessary.
Tighten the nut to expand the clip inside the concrete.
Packaging & Delivery
| Packaging | Small box + carton + pallet |
| Bulk packaging or plastic tubes (optional) | |
| OEM logo and label available | |
| Lead Time | 10–25 days depending on quantity |
| Shipping Port | Tianjin, China |
Why Choose Hebei Chudu
Full range of concrete anchoring systems.
Strict QC and ISO-certified production.
Large inventory and fast delivery.
Professional support for custom sizes and OEM branding.
Exported to Europe, North America, Middle East, and Asia.
Frequently Asked Questions
What base materials can wedge anchors be used in?
Wedge anchors are exclusively designed for use in solid concrete. They are not recommended for brick, block, mortar, or other masonry materials because their expansion mechanism requires the high structural density of solid concrete to hold securely.
How do I determine the correct drill bit size for a wedge anchor?
The drill bit size must match the nominal diameter of the wedge anchor. For instance, a 1/2-inch wedge anchor requires a 1/2-inch carbide-tipped drill bit to drill the installation hole.
Can wedge anchors be removed after installation?
No, standard wedge anchors are permanent fasteners and cannot be easily removed. If removal is required, you must cut the anchor shank off flush with the concrete surface using a grinder, or drill it out.
How deep should the hole be drilled for installation?
The hole should be drilled at least 1/2" to 1" deeper than the targeted embedment depth of the anchor. This extra depth ensures there is enough space for concrete dust generated during installation, allowing the anchor to seat properly.
What is the difference between carbon steel and stainless steel wedge anchors?
Carbon steel wedge anchors are typically zinc-plated or hot-dip galvanized and are ideal for dry, indoor applications or temporary outdoor structures. Stainless steel (SS304/SS316) wedge anchors offer superior corrosion resistance and are recommended for outdoor, marine, or chemical-exposed environments.