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Reliable Drop-In Anchors from China 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.
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Website: www.chudufastener.com
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Email: barry@hbchudu.com
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WhatsApp / Phone: +86 18533933520
Frequently Asked Questions
What is a drop-in anchor used for?
Drop-in anchors are internally threaded expansion anchors designed for secure anchoring into solid concrete. They are commonly used for overhead suspensions, pipe hanging, HVAC ductwork, and securing machinery or handrails.
How do you install a drop-in anchor?
First, drill a hole to the recommended depth and diameter, then clean the dust out thoroughly. Insert the anchor flush with the concrete surface and use a specialized setting tool inside the anchor to expand the internal plug. Finally, insert your bolt or threaded rod and tighten.
Can drop-in anchors be used in brick or hollow block?
No, drop-in anchors require solid concrete to expand and hold properly. They are not recommended for hollow block, brick, or lightweight masonry materials.
What materials are available for Chudu Fastener drop-in anchors?
We offer drop-in anchors in high-quality Carbon Steel (with zinc plated finish for corrosion resistance) as well as Stainless Steel (SS304 and SS316) for superior rust protection in outdoor or marine environments.
Are the bolts removable after the anchor is installed?
Yes. Because the drop-in anchor shell remains permanently expanded inside the concrete, the bolt or threaded rod can be unscrewed and removed or replaced whenever necessary.
What is the minimum order quantity (MOQ) and lead time?
Our standard MOQ is 5,000 pieces, which can be negotiated depending on the specific sizes required. The typical production lead time is 10 to 20 days.