What Is A Drop In Anchor Used For & How To Install | Info
Stop overpaying for concrete anchoring. Discover how Boen Fasteners delivers ASTM-compliant drop in anchors at factory-direct pricing, with full traceability and global shipping.

ISO 9001 Certified Facility
Are you paying 40% more for the same ASTM F1554 drop in anchor just because of a famous logo? The brand premium does not equal better performance.
Struggling with supply chain disruptions? Long lead times from legacy suppliers are delaying your critical infrastructure projects.
Lack of material traceability and plating thickness verification leads to premature corrosion and installation failures. Rework costs add up fast.
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A drop in anchor is a internally threaded concrete anchor designed for flush-mount overhead applications. It consists of a cylindrical body, a conical plug, and expansion clips. When the setting tool is hammered, the cone forces the clips outward, locking the anchor into the concrete. Unlike wedge anchors, the drop in anchor sits entirely below the concrete surface, making it ideal for aesthetic or clearance-sensitive installations.
* Values based on 4,000 psi concrete. Compliance: ASTM F1554, ICC-ES.
Proper installation is critical to achieving the rated pull-out and shear values. Follow these steps to ensure a secure installation every time.
Use a carbide-tipped bit matching the anchor diameter. Drill to the required embedment depth (e.g., 1.5" for a 1/2" anchor).
Vacuum the hole, then use a wire brush. Vacuum again. Dust reduces holding strength by up to 50%.
Tap the drop in anchor into the hole until it is flush with the concrete surface. Ensure it is fully seated.
Insert the setting tool into the anchor. Strike with a hammer until the tool bottoms out. This expands the clips against the concrete.
Thread the bolt or threaded rod into the anchor. Torque to the recommended value (e.g., 50 ft-lbs for 1/2").
đĽ Download the full installation manual with torque specs
Est. 2010, 30,000 sqm facility. 10+ production lines for drop in anchors, rivets, and bolts.
ISO 9001, CE, RoHS. Full material traceability with MTRs. Plating thickness verified per ASTM B633.
Stock in US & Europe hubs. Lead times as low as 7 days for standard sizes. 20ft containers in 3-4 weeks.
Custom lengths, materials (304/316 SS, HDG), and private labeling. Your design, our precision.
⥠Unbeatable Value: Factory-direct pricing ensures you get the best cost-performance ratio. Save 30-40% vs. US/EU brands without compromising on quality.



We replaced our Hilti anchors with Boen's drop in anchors. The cost savings were over 37%, and the pull-out tests passed easily. Highly recommend.

Excellent quality and fast shipping. The 316 stainless steel drop in anchors are perfect for our coastal projects. No corrosion issues.

The traceability and compliance documentation Boen provides is top-notch. Our engineering team is very satisfied with the transparency.

A drop in anchor is internally threaded and sits flush with the concrete surface, ideal for overhead use. A wedge anchor has a threaded stud protruding and is typically used for floor mounting.
Drill, clean, insert the anchor, then use the setting tool to expand the clips. Always ensure the hole is clean to prevent dropouts.
The minimum edge distance is typically 6 times the anchor diameter (3" for 1/2"). Spacing should be at least 8 times the diameter.
Yes, our manufacturing process complies with ICC-ES acceptance criteria for concrete anchors. Test reports are available upon request.
For standard sizes, we can ship within 7-10 days. For 20ft containers, typical lead time is 3-4 weeks from order confirmation.
Absolutely. We offer free samples to qualified buyers. Just pay shipping, and we can deduct the cost from your first order.

Michael Chen â Senior Structural Fastening Specialist
With over 15 years in the industrial fastening industry, Michael specializes in concrete anchoring systems, seismic bracing, and structural steel connections. He ensures that Boen Fasteners consistently delivers products that meet the highest international standards.
Get factory-direct pricing on ASTM-certified drop in anchors. Free samples for qualified buyers.
* Limited stock offer. Free samples subject to qualification. Privacy policy applies.