Our torx screw series includes pan head, flange head, and cylindrical head types in M3, M4, M6 sizes, with anti-loose nylon patch options. Made of 304 stainless steel or zinc-plated carbon steel, they feature security torx drive to prevent unauthorized disassembly. Blue Nylon patch on the thread provides effective vibration resistance, ideal for electric meter covers, terminal blocks, and anti-tamper fastening applications, combining safety and reliability for power metering equipment.
| System of Measurement | Metric |
|---|---|
| Material | 304 Stainless Steel, Zinc Plated Carbon Steel |
| Standard Sizes | M3×10, M4×10, M6×14, non-standard sizes customizable |
| Head Type | Pan Head, Flange Head, Cylindrical Cap Head |
| Drive Type | Security Torx (Star) Drive |
| Anti-Loose Treatment | Optional Blue Nylon Patch Coating |
| Surface Finish | Stainless Steel Passivation, Zinc Plating |
| Production Process | Cold Heading, Thread Rolling, Nylon Patch Coating |
| Executive Standard | ISO, DIN, GB, Custom Drawing Specification |
| Application | Electric Meter Anti-Tamper Fastening, Terminal Block Connection, Cabinet Cover Fixing |
1.Security torx drive design: Special star-shaped drive prevents disassembly by common screwdrivers, meeting anti-tamper requirements for power metering equipment.
2.Optional Nylon patch anti-loose treatment: Blue Nylon coating on the thread creates friction lock to resist loosening caused by long-term vibration and temperature changes.
3.Diversified head type matching: Pan head, flange head and cylindrical cap head adapt to different meter shell, terminal block and PCB assembly structures.
4.Two anti-corrosion material options: Stainless steel for outdoor damp environments and zinc-plated steel for cost-effective indoor meter production.
5.Precision rolled standard metric thread: Uniform thread pitch ensures smooth assembly, stable locking force and durability for repeated use.
Dual protection of anti-tamper and anti-loose
Security torx drive prevents unauthorized disassembly, while Nylon patch effectively solves vibration loosening problems.
Excellent long-term connection reliability
Nylon patch anti-loose technology maintains stable clamping force under vibration, reducing terminal overheating risks.
Highly customized structural flexibility
Support custom thread length, head shape and anti-loose coating according to customer’s unique meter design requirements.
Excellent environmental adaptability
Stainless steel and zinc-plated materials meet the anti-corrosion needs of indoor and outdoor meter cabinet environments.
Spot inventory for mainstream specifications
Core sizes M3, M4, M6 are stocked in large quantities, supporting fast delivery of small samples and bulk orders.
Full compliance with power industry standards
Product performance meets international fastener and power grid anti-tamper requirements, suitable for various domestic and imported meter equipment.


