Anti-Theft Nuts
Anti-Theft Nuts are specialized security fasteners designed to prevent unauthorized tampering and removal, ensuring high-security fastening in sensitive installations. These nuts feature unique drive mechanisms, breakaway sections, or proprietary key patterns, making them ideal for public infrastructure, transportation, telecommunications, military, and critical industrial applications.
At Rajal Industries, we manufacture precision-engineered Anti-Theft Nuts conforming to custom security standards, ensuring maximum protection against theft, vandalism, and unauthorized disassembly.
Sizes & Standards
| Size Range | Standards |
|---|---|
| Metric: M1.6 to M100 | No specific, general nut standards with security modifications |
| Imperial: 1/4" to 1-1/2" | Custom security standards for tamper-resistant applications |
| Industry-specific designs for high-security fastening |
Material & Strength Grades
| Material Type | Available Strength Grades | Industry Standards |
|---|---|---|
| Carbon Steel & Mild Steel | Class 4, 5, 8, 10, 12 | Custom security specifications |
| Stainless Steel (Corrosion Resistant) | A2-70 (SS 304), A4-80 (SS 316) | ISO 3506 |
| Hardened Steel (Vandal-Proof Design) | Class 8, 10, 12 | Custom security fastener standards |
- Heat-Treated for Maximum Security & Strength –Anti-theft nuts undergo hardening to resist forced removal, torque overload, and tampering.
- Load Ratings Based on Material & Application:
- Carbon Steel Class 8 Anti-Theft Nut: 800-900 MPa tensile strength
- Stainless Steel A4-80 Anti-Theft Nut: 700-800 MPa corrosion-resistant strength
Security Features & Anti-Tampering Mechanisms
Breakaway Shear Nut for One-Way Installation
- The top section shears off after installation, leaving only a smooth, non-removable base.
- Ideal for high-security public installations where re-access is not required.
Proprietary Key Drive Systems for Controlled Access
- Requires a specialized driver to install or remove, preventing unauthorized access.
- Available in pin-in hex, spanner, tri-groove, and pentagon drive types.
Serrated Flange & Locking Features for Anti-Loosening
- Prevents vibration-induced loosening in transportation, construction, and defense applications.
Designed for maximum grip on metal surfaces without additional locking elements.
Corrosion-Resistant Coatings for Outdoor & Marine Use
- Available with electro-galvanized, hot-dip galvanized, PTFE, and black oxide finishes.
Thread Specifications & Precision Engineering
| Thread Type | Description | Application |
|---|---|---|
| Coarse Thread (UNC/Metric) | Ensures fast engagement and strong grip | Public infrastructure, outdoor installations |
| Fine Thread (UNF/Metric Fine) | Provides stronger holding power & anti-vibration performance | Aerospace, defense, high-security facilities |
| Fully Threaded Anti-Theft Nuts | Allows maximum engagement and secure fastening | Electronics, telecom enclosures, traffic signals |
| Partially Threaded Anti-Theft Nuts | Provides better shear strength & controlled load transfer | Structural security applications |
Thread Fitment & Compliance
- Metric threads conform to ISO 6H tolerances, ensuring tight security fastening.
- Imperial anti-theft nuts comply with custom security standards for secure industrial use.
Common Applications of Anti-Theft Nuts
- Public Infrastructure & Transportation – Used in street signs, public seating, train stations, and bus stops.
- Telecommunications & Electrical Installations – Prevents unauthorized access to junction boxes, network cabinets, and power enclosures.
- Aerospace & Defense Applications – Provides tamper-resistant fastening in military vehicles, aircraft, and high-security facilities.
- Correctional Facilities & High-Security Buildings – Used in prisons, detention centers, and secured enclosures.
- Automotive & Railway Systems – Ensures vibration-resistant, tamper-proof fastening in transportation infrastructure.
Why Choose Rajal Industries for Anti-Theft Nuts?
Manufactured to Custom Security Standards
Ensuring maximum protection against theft and vandalism.
Tamper-Resistant Designs
Available in breakaway, proprietary drive, and anti-loosening variants.
Customizable Security Fasteners
Offering various coatings, thread profiles, and drive mechanisms.
Bulk & Custom Orders
Ideal for government projects, industrial security, and critical infrastructure.
High Strength & Long-Term Security
Engineered to resist forced removal and unauthorized tampering.
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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