Drop-In Anchors
Drop-In Anchors are internally threaded expansion anchors designed for flush-mounting in solid concrete, brick, and stone surfaces. These anchors provide strong pull-out resistance, vibration resistance, and long-lasting performance, making them ideal for HVAC installations, suspended ceilings, industrial equipment anchoring, and mechanical systems.
At Rajal Industries, we manufacture precision-engineered Drop-In Anchors conforming to DIN standards, ensuring reliable load-bearing capacity, corrosion protection, and secure fastening for industrial and structural applications.
Sizes & Standards
| Size Range | Standards |
|---|---|
| Metric: M6 to M24 | DIN 529 – German standard for sleeve-type expansion anchors |
| Imperial: 1/4" to 1" | General anchor standards – Industry-standard for flush-mount expansion anchors |
Material & Strength Grades
| Material Type | Available Strength Grades | Industry Standards |
|---|---|---|
| Carbon Steel & Mild Steel | Class 5.8, 8.8, 10.9 | DIN 529, General Anchor Standards |
| Stainless Steel (Corrosion Resistant) | A2-70 (SS 304), A4-80 (SS 316) | ISO 3506 |
| Hot-Dip Galvanized Steel (Outdoor Use) | Class 8.8, 10.9 | DIN 529, General Anchor Standards |
- Heat-Treated for Maximum Strength –Drop-in anchors undergo quenching and tempering to enhance load-bearing capacity and pull-out strength.
- Load Ratings Based on Material & Application:
- Carbon Steel Class 8.8 Drop-In Anchor: 800-900 MPa tensile strength
- Stainless Steel A4-80 Drop-In Anchor: 700-800 MPa corrosion-resistant strength
Drop-In Anchor Design & Engineering Features
Flush-Mount Design for Discreet & High-Strength Anchoring
- Installs flush with the concrete surface, allowing a clean, low-profile finish.
Prevents tripping hazards in pedestrian areas and workspaces.
Expansion Mechanism for Secure Concrete Fastening
- The internal expansion cone activates when the bolt is tightened, ensuring high pull-out resistance.
Provides secure anchoring for dynamic loads, seismic resistance, and high-impact applications.
Heavy-Duty Holding Power & Vibration Resistance
- The internal expansion cone activates when the bolt is tightened, ensuring high pull-out resistance.
Provides secure anchoring for dynamic loads, seismic resistance, and high-impact applications.
Pre-Threaded Interior for Quick Bolt Engagement
- Accepts fully threaded bolts and threaded rods, allowing easy fixture attachment and removal.
Compatible with machine screws, stud bolts, and specialty fasteners.
Heavy-Duty Holding Power for Load-Bearing Applications
- Designed for suspended HVAC ducting, industrial piping, and equipment mounting.
Maintains long-term fastening under vibration and thermal expansion conditions.
Corrosion-Resistant Coatings for Harsh Environments
- Available in zinc-plated, hot-dip galvanized, and stainless steel finishes.
Protects against moisture, chemicals, and environmental wear.
Thread Specifications & Precision Engineering
| Thread Type | Description | Application |
|---|---|---|
| Coarse Thread (UNC/Metric) | Ensures fast engagement and strong grip | HVAC, mechanical systems, masonry fastening |
| Fine Thread (UNF/Metric Fine) | Provides higher tensile strength & precise load transfer | Seismic-rated structures, machinery installations |
| Fully Threaded Drop-In Anchors | Allows maximum adjustability and secure fastening | Suspended ceilings, electrical conduits, pipe supports |
| Partial Thread Drop-In Anchors | Offers better shear strength & enhanced load distribution | Industrial enclosures, rail tracks, heavy-duty applications |
Thread Fitment & Compliance
- Metric threads conform to ISO 6H tolerances, ensuring tight bolt engagement.
- Imperial drop-in anchors meet DIN 529 standards for universal compatibility.
Common Applications of Drop-In Anchors
- HVAC & Mechanical Installations – Used for suspended ducting, pipe brackets, and ventilation systems.
- Industrial Equipment & Machinery Mounting – Provides secure attachment in heavy-duty installations.
- Concrete & Masonry Construction – Ensures strong load-bearing fastening in concrete slabs and walls.
- Oil & Gas & Power Plants – Used in pipeline brackets, refinery platforms, and offshore installations.
- Commercial & Residential Projects – Ideal for suspended ceilings, signboards, and handrails.
Why Choose Rajal Industries for Drop-In Anchors?
Manufactured to International Standards
Ensuring precision engineering, strength, and compliance.
Flush-Mount & Heavy-Duty Expansion
Designed for secure fastening in concrete and masonry.
Customizable Variants Available
Offering zinc-plated, galvanized, and stainless steel drop-in anchors.
Bulk & Custom Orders
Ideal for construction, mechanical, and industrial applications.
Stringent Quality Control
Each batch undergoes torque testing, pull-out resistance verification, and corrosion resistance assessment.
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Our Offices
C-204, Vaibhav Platina, Nr. Kaveri Trishra, S P Ring road, Shilaj, Ahmedabad, Gujarat-380054
Call us
+91-846 036 2030
Email Us
rajalfast@gmail.com sales@rajalindustries.com