Self-Tapping Screws
Self-Tapping Screws are specialized fasteners designed to cut their own threads into metal, plastic, and wood without requiring pre-tapped holes. These screws provide high retention strength, secure fastening, and vibration resistance, making them ideal for automotive, electronics, construction, and industrial manufacturing applications.
At Rajal Industries, we manufacture ISO, ASME, and DIN-compliant self-tapping screws with accurate thread profiles, multiple head styles, and high-strength materials, ensuring long-term performance and reliability.
Sizes & Standards
| Size Range | Standards |
|---|---|
| Diameters: M2 to M10 (Metric) | ISO 1472 – Standard for slotted pan head self-tapping screws |
| Gauge Sizes: 4 to 14 (Imperial) | ASME B18.6.1 – American standard for self-tapping screws |
| Lengths: 6mm to 100mm | ISO 1479 – Standard for hexagon head self-tapping screws |
| DIN 7982 – Countersunk head self-tapping screws | |
| DIN 7976 – Tapping screws for sheet metal applications |
Material & Strength Grades
| Material Type | Available Strength Grades | Industry Standards |
|---|---|---|
| Mild Steel & Carbon Steel | 4.6, 5.6, 8.8 | ISO 1472, ASME B18.6.1 |
| Stainless Steel (Corrosion Resistant) | A2-70 (SS 304), A4-80 (SS 316) | ISO 3506, DIN 7982 |
| Hardened Steel (Heat Treated) | Class 8.8, 10.9 | ISO 1479, DIN 7976 |
- Heat-Treated for Maximum Strength –Self-tapping screws undergo case hardening for enhanced wear resistance and cutting performance.
- Load Ratings Based on Material & Application:
- Carbon Steel Class 8.8 Self-Tapping Screw: 800-900 MPa tensile strength
- Stainless Steel A4-80 Machine Screw : 700-800 MPa corrosion-resistant strength
Head & Drive Design Specifications
Multiple Head Styles for Various Applications
- Pan Head (ISO 1472, DIN 7982) – Provides a low-profile, rounded top for flush installation.
- Countersunk Head (DIN 7982, ISO 1479) – Ensures a smooth, flush surface for aesthetic and functional purposes.
- Hexagon Head (ISO 1479, DIN 7976) – Designed for high torque applications and strong fastening.
Precision Machined Threads for Self-Tapping Action
- Threads are sharpened and case-hardened to cut into material effortlessly.
- Available in coarse and fine thread profiles for optimal engagement with different substrates.
Compatible with Various Drive Styles
- Phillips Drive (Cross Recessed) – Offers quick assembly and prevents cam-out.
- Slotted Drive – Common in manual installations and maintenance-friendly applications.
- Torx& Hex Drive – Provides higher torque resistance, reducing the risk of stripping.
Thread Specifications & Precision Engineering
| Thread Type | Description | Application |
|---|---|---|
| Coarse Thread (UNC/ISO Metric) | Allows fast penetration and strong grip | Wood, plastics, general-purpose fastening |
| Fine Thread (UNF/Metric Fine) | Provides higher tensile strength & precise load transfer | Thin sheet metal, aluminum, industrial machinery |
| Fully Threaded Self-Tapping Screws | Ensures maximum adjustability and strong engagement | Electronics, telecom, construction panels |
| Partially Threaded Self-Tapping Screws | Offers better shear strength and load-bearing capability | Structural fastening, reinforced panels |
Thread Fitment & Compliance
- Metric threads conform to ISO 6g tolerances, ensuring secure fastening and easy installation.
- Imperial threads comply with ASME B18.6.1 and DIN 7982 for uniform load distribution.
Common Applications of Self-Tapping Screws
- Sheet Metal Fabrication & Automotive Assembly – Used in car body panels, roofing sheets, and metal enclosures.
- Electronics & PCB Mounting – Provides secure fastening in small devices and control panels.
- Furniture & Cabinetry – Ensures quick assembly of wooden, plastic, and laminate structures.
- Construction & HVAC Installations – Used for ductwork, wall panels, and mounting electrical fittings.
- Telecom & Infrastructure Projects – Ideal for fastening antennas, enclosures, and industrial setups.
Why Choose Rajal Industries for Self-Tapping Screws?
Manufactured to International Standards
Ensuring precision engineering, strength, and compliance.
Customizable Designs
Available in various head types, drive styles, and coatings.
Bulk & Custom Orders
Flexible manufacturing for high-volume and specialized applications
Durability & Strength
Engineered with high-performance materials for maximum reliability.
Stringent Quality Control
Self-Tapping Screws undergo torque testing, thread fitment verification, and dimensional accuracy checks
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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