Phone
Send Email
whatsapp
Facebook
Youtube
Hot Products
0102030405
Reliable China Drop-In Anchors from Leading Suppliers | Flush-Mount Anchoring Factory for Solid Concrete
Product Overview
| Product Name | Drop-In Anchor / Flush Anchor / Internally Threaded Anchor |
| Standard | DIN / ANSI / ISO / GB / Customized |
| Thread Size | M6 – M20 (or 1/4" – 3/4") |
| Length | 25 mm – 80 mm or customized |
| Installation | Requires a setting tool to expand the anchor body |
| Usage | Anchoring into solid concrete (not suitable for hollow block or brick) |
| Material Options | Carbon Steel / Stainless Steel (SS304, SS316) |
| Surface Finish | Zinc Plated (White / Yellow) |
Product Features
Flush finish – perfect for applications requiring surface clearance
Internally threaded – allows bolt removal and reuse
Strong holding power in solid concrete
Ideal for overhead installations or suspended fixtures
Easy to install with drill, hammer, and setting tool
Typical Applications
Electrical and mechanical installations
HVAC systems and pipe hanging
Handrails and safety barriers
Cable trays and brackets
Equipment mounting on ceilings or walls
Installation Steps
1
Drill a hole to the correct diameter and depth.
2
Clean the hole thoroughly.
3
Insert the anchor flush with the concrete surface.
4
Use a drop-in setting tool to expand the anchor.
5
Insert bolt or threaded rod and tighten.
Packaging & Delivery
- Packaging: Small boxes + outer carton, or bulk in bags. Custom labels or kits with bolts available.
- MOQ: 5,000 pcs (negotiable based on size).
- Lead Time: 10–20 days.
- Port of Shipment: Tianjin, China.
Why Choose Chudu Fastener
- Factory-direct prices and strict QC inspection.
- Over 10 years of anchor bolt production experience.
- Full size availability and customization.
- High-quality materials with anti-corrosion coatings.
- Fast global delivery with multilingual support.
Contact Us
Hebei Chudu Metal Products Co., Ltd.
Frequently Asked Questions (FAQ)
What is a drop-in anchor used for?
Drop-in anchors are internally threaded expansion anchors designed for heavy-duty anchoring into solid concrete. Common applications include suspending pipes, HVAC ductwork, fire sprinkler systems, and mounting machinery or handrails.
Can drop-in anchors be used in brick, block, or hollow walls?
No, drop-in anchors are designed specifically for solid concrete. They rely on the expansion force against solid walls to achieve their load capacity. Using them in hollow blocks, brick, or mortar can cause the base material to split or fail.
Do I need a special tool to install drop-in anchors?
Yes, a drop-in setting tool (also known as a hand setting punch) is required. Once the anchor is placed in the pre-drilled hole, the setting tool is inserted and struck with a hammer to drive the internal expansion plug down, expanding the anchor shell against the concrete.
Are drop-in anchors removable?
The bolt or threaded rod inserted into the drop-in anchor can be easily removed or replaced, allowing for easy maintenance of the fixture. However, the anchor body itself remains permanently embedded flush in the concrete.
What materials and finishes do you offer?
We manufacture drop-in anchors in high-quality Carbon Steel with yellow or white zinc plating for indoor dry applications, as well as Stainless Steel (SS304 and SS316) for superior corrosion resistance in outdoor or wet environments.
How do I determine the correct hole size to drill?
The drill bit diameter must match the outer diameter of the drop-in anchor body, not the internal thread size. Refer to our product specification table or consult our technical support to ensure the correct drill bit size and depth are used for secure installation.