Threaded Inserts
Threaded Inserts are internally threaded, cylindrical fasteners designed to create strong, wear-resistant threads in soft materials like wood, plastic, and aluminum. These inserts enhance thread durability, improve load distribution, and allow for repeated fastener engagement without thread stripping.
At Rajal Industries, we manufacture precision-engineered Threaded Inserts conforming to DIN and general industry standards, ensuring high-strength performance, corrosion resistance, and secure fastening for industrial, automotive, aerospace, and repair applications.
Sizes & Standards
| Size Range | Standards |
|---|---|
| Metric: M2 to M10 | DIN 529 – German standard for threaded inserts |
| Imperial: Gauge 2 to 12 | General thread standards – Industry-standard for internally threaded inserts |
Material & Strength Grades
| Material Type | Available Strength Grades | Industry Standards |
|---|---|---|
| Carbon Steel & Mild Steel | Class 5.8, 8.8, 10.9 | DIN 529, General Thread Standards |
| Stainless Steel (Corrosion Resistant) | A2-70 (SS 304), A4-80 (SS 316) | ISO 3506 |
| Brass (Non-Corrosive & Electrical Applications) | Custom Hardness Ratings | General Insert Standards |
| Aluminum (Lightweight & Non-Magnetic Applications) | Custom Hardness Ratings | DIN 529, General Standards |
- Heat-Treated for Maximum Strength –Threaded inserts undergo hardening for enhanced wear resistance, pull-out strength, and long-lasting durability.
- Load Ratings Based on Material & Application:
- Carbon Steel Class 8.8 Threaded Insert: 800-900 MPa tensile strength
- Stainless Steel A4-80 Threaded Insert: 700-800 MPa corrosion-resistant strength
Threaded Insert Design & Engineering Features
Thread Reinforcement for Soft & Thin Materials
- Creates durable internal threads in wood, plastic, composite materials, and light metals.
Prevents thread stripping, wear, and deformation in high-torque applications.
Multiple Installation Methods for Versatility
- Press-Fit Inserts – Designed for quick installation using simple pressing tools.
- Self-Tapping Inserts – Cuts its own threads into the base material for secure anchoring.
- Heat-Set Inserts – Softens thermoplastics during installation to create a strong bond.
- Threaded Bushings & Key-Locking Inserts – Provides removable, heavy-duty reinforcement for high-stress applications.
High-Strength & Wear-Resistant Threads for Repeated Fastening
- Withstands multiple screw insertions and removals without degradation.
Ensures long-term fastening performance in industrial and aerospace applications.
Corrosion & Temperature Resistance for Harsh Environments
- Available in zinc-plated, stainless steel, brass, and aluminum finishes.
Protects against moisture, oxidation, and chemical exposure.
Compatible with Various Bolt & Screw Types
- Machine Screws, Hex Bolts, and Threaded Studs – Provides secure fastening in metal and plastic housings.
Wood Screws & Lag Bolts – Reinforces structural wood components, furniture, and decking.
Thread Specifications & Precision Engineering
| Thread Type | Description | Application |
|---|---|---|
| Coarse Thread (UNC/Metric) | Ensures fast engagement and strong grip | Wood, plastic, composite materials |
| Fine Thread (UNF/Metric Fine) | Provides higher tensile strength & precise load transfer | Aerospace, electronic enclosures |
| Fully Threaded Inserts | Allows maximum engagement and secure fastening | Machinery, automotive, heavy-duty equipment |
| Partial Thread Inserts | Offers better shear strength & enhanced load distribution | Structural applications, high-vibration environments |
Thread Fitment & Compliance
- Metric threads conform to ISO 6H tolerances, ensuring tight screw engagement.
- Imperial threaded inserts meet DIN 529 standards for industrial and precision applications.
Common Applications of Threaded Inserts
- Automotive & Aerospace Engineering – Reinforces engine components, aircraft panels, and composite structures.
- Plastics & Thermoplastic Molding – Ensures strong threading in plastic casings, injection-molded parts, and enclosures.
- Woodworking & Furniture Assembly – Used in cabinets, furniture joints, and structural wood reinforcement.
- Electronics & Electrical Engineering – Provides secure fastening in circuit boards, battery enclosures, and electrical panels.
- Industrial Machinery & Equipment – Ensures reliable fastening in heavy-duty tools, robotic systems, and control panels.
Why Choose Rajal Industries for Threaded Inserts?
Manufactured to International Standards
Ensuring precision engineering, strength, and compliance.
High-Strength & Wear-Resistant Design
Engineered for repeated fastening in industrial and structural applications.
Customizable Variants Available
Offering press-fit, self-tapping, heat-set, and key-locking inserts.
Bulk & Custom Orders
Ideal for automotive, electronics, and mechanical assembly industries.
Stringent Quality Control
Each batch undergoes pull-out strength testing, thread fitment verification, and impact 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