Wedge Anchor
Wedge Anchors, also known as through bolts, are mechanical expansion anchors designed for high-load anchoring in concrete, masonry, and solid base materials. These anchors provide exceptional pull-out strength, vibration resistance, and ease of installation, making them ideal for structural steel, heavy machinery, bridges, and industrial infrastructure.
At Rajal Industries, we manufacture precision-engineered Wedge Anchors conforming to ASTM, DIN, and ISO standards, ensuring high holding power, corrosion resistance, and long-term durability in load-critical applications.
Sizes & Standards
| Size Range | Standards |
|---|---|
| Metric: M6 to M24 | ISO 14592 – Standard for mechanical expansion anchors |
| Imperial: 1/4" to 1" | ASTM E1512 – Standard for concrete anchor systems |
| DIN 7452 – German standard for wedge-type expansion anchors |
Material & Strength Grades
| Material Type | Available Strength Grades | Industry Standards |
|---|---|---|
| Alloy Steel (Quenched & Tempered) | Class 5.8, 8.8, 10.9 | DIN 7452, ISO 14592 |
| Carbon Steel (High-Tensile Strength) | A2-70 (SS 304), A4-80 (SS 316) | ISO 3506 |
| Hot-Dip Galvanized Steel (Outdoor Use) | Class 8.8, 10.9 | ASTM E1512, ISO 14592 |
- Heat-Treated for Maximum Strength –Wedge anchors undergo quenching and tempering for enhanced tensile strength and impact resistance.
- Load Ratings Based on Material & Application:
- Carbon Steel Class 8.8 Wedge Anchor: 800-900 MPa tensile strength
- Stainless Steel A4-80 Wedge Anchor: 700-800 MPa corrosion-resistant strength
Wedge Anchor Design & Engineering Features
Expansion Mechanism for Secure Concrete Anchoring
- Upon tightening, the wedge clip expands, embedding into the concrete for high pull-out resistance.
Ensures firm grip without excessive expansion stress, preventing concrete cracking.
Through Bolt Design for Quick & Reliable Installation
- Allows installation through the fixture, eliminating the need for pre-positioning.
Provides easy removal and reusability for temporary applications.
Heavy-Duty Holding Power & Vibration Resistance
- Designed for seismic, dynamic, and heavy-load conditions.
Maintains secure fastening in industrial machinery, railway systems, and structural steel.
Corrosion-Resistant Coatings for Harsh Environments
- Available in zinc-plated, hot-dip galvanized, and stainless steel finishes.
Ensures long-term performance in outdoor, marine, and high-moisture applications.
Supplied with Pre-Assembled Nut & Washer for Ready-to-Use Installation
- Eliminates loose component handling, making installation efficient and hassle-free.
Thread Specifications & Precision Engineering
| Thread Type | Description | Application |
|---|---|---|
| Coarse Thread (UNC/Metric) | Ensures fast engagement and high load resistance | Concrete, masonry, industrial infrastructure |
| Fine Thread (UNF/Metric Fine) | Provides higher tensile strength & precise load transfer | Seismic zones, railway applications |
| Fully Threaded Wedge Anchors | Allows maximum adjustability and secure fastening | Mechanical, HVAC, safety barriers |
| Partial Thread Wedge Anchors | Offers better shear strength & enhanced load distribution | Bridges, high-rise construction |
Thread Fitment & Compliance
- Metric threads conform to ISO 6H tolerances, ensuring secure engagement with pre-drilled concrete holes.
- Imperial wedge anchors meet ASTM E1512 for universal compatibility in industrial and structural applications.
Common Applications of Wedge Anchors
- Structural Steel & Building Construction – Used for steel columns, beams, and seismic reinforcement.
- Heavy Machinery & Equipment Mounting – Provides secure foundation anchoring for industrial machines and compressors.
- Bridges & Infrastructure – Ensures high-strength fastening in bridge bearings, guardrails, and expansion joints.
- Oil & Gas & Power Plants – Used in pipeline supports, turbines, and refinery platforms.
- HVAC & Mechanical Systems – Fastens ducting, piping, and heavy-duty ventilation systems.
Why Choose Rajal Industries for Wedge Anchors?
Manufactured to ASTM A193 Standards
Ensuring precision engineering, strength, and compliance.
Customizable Variants Available
Offering stainless steel, galvanized, and high-strength wedge anchors.
High-Tensile Expansion Anchoring
Designed for load-bearing, vibration-resistant applications.
Bulk & Custom Orders
Ideal for construction, railway, and industrial applications.
Stringent Quality Control
Each batch undergoes torque testing, pull-out resistance verification, and seismic load 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