Drop In Anchor
Air conditioning installation Pipe supports Fire protection pipes Cable trays Ceiling works Machinery and equipment fixing

Product Introduction
A Drop In Anchor (Internal Expansion Anchor) is an expansion anchor installed inside a concrete base material. Using a special installation tool, the internal expansion plug is driven in, causing the sleeve to expand outward and create strong friction and mechanical interlocking with the concrete hole wall, ensuring reliable fixation.
WT Fasteners professionally produces various specifications of Drop In Anchors, including standard Drop In Anchors, Drop In Anchors with lip, heavy-duty Drop In Anchors, and stainless steel Drop In Anchors. We can provide different materials, specifications, and surface treatment options according to customer requirements.
Drop In Anchors are widely used in construction installation, pipe fixing, fire protection systems, electrical engineering, machinery and equipment installation, and steel structure engineering.
Product Features
1. Secure and Reliable Installation
With an internal expansion structure, it forms a stable anchoring force after installation, suitable for solid base materials such as concrete and natural stone.
2. High Installation Flexibility
After installation, it can be used with bolts or threaded rods, allowing easy disassembly and reinstallation.
3. High Load Capacity
The expansion sleeve fully expands, creating mechanical interlocking with the base material, enhancing tensile and shear performance.
4. Multiple Material Options
Available in carbon steel, stainless steel 304, and stainless steel 316 to meet different environmental requirements.
5. Customization Supported
Dimensions, materials, thread specifications, and surface treatments can be customized according to customer requirements.
Product Parameters
Product Name:
Drop In Anchor
English Name:
Drop In Anchor / Internal Expansion Anchor
Common Standards:
- DIN 933
- ETA Standards
- ASTM Standards
Materials:
- Carbon Steel
- Stainless Steel 304
- Stainless Steel 316
Specification Range:
M6-M20
(Custom sizes available)
Suitable Base Materials:
- Concrete
- Stone
- High-strength brick walls
Types:
- Standard Drop In Anchor
- Drop In Anchor with Lip
- Heavy-duty Drop In Anchor
- Stainless Steel Drop In Anchor
Surface Treatments:
- Electroplated zinc
- Hot-dip galvanized
- Blue-white zinc
- Stainless steel natural finish
Installation Method:
- Drill a hole
- Clean debris from the hole
- Insert the Drop In Anchor
- Use installation tool to drive in the expansion plug
- Install bolt or threaded rod
Product Types
Standard Drop In Anchor
Suitable for general concrete fixing applications.
Drop In Anchor with Lip
Features a positioning flange to control installation depth, improving construction convenience.
Heavy-duty Drop In Anchor
Designed for projects with higher load requirements.
Stainless Steel Drop In Anchor
Excellent corrosion resistance, suitable for outdoor and humid environments.
Application Areas
Drop In Anchors are widely used in:
- Construction engineering
- Fire protection pipe installation
- Air conditioning bracket fixing
- Cable tray installation
- Steel structure installation
- Machinery and equipment fixing
- Solar panel mounting systems
- Industrial equipment installation
Packaging
Available according to customer requirements:
- Plastic bag packaging
- Small box packaging
- Carton packaging
- Woven bag packaging
- Pallet packaging
- Customer-branded packaging











































