🔐 Countersunk Head Pin Torx Security Screw – Tamper-Proof Flush Fastener | Neo Fasteners
CSK Head Pin Torx Screws, also known as Flat Head Security Torx Screws, are tamper-resistant fasteners designed for flush mounting and high security. These screws feature a countersunk flat head, combined with a 6-lobe Torx drive with a central security pin, preventing removal with standard tools.
Neo Fasteners offers these screws in stainless steel, mild steel, and alloy finishes, ensuring superior strength, corrosion resistance, and secure installations across public safety equipment, electronics, signage, panels, and access controls.
🛠️ Key Features
- Tamper-proof design – requires special pin Torx driver
- Flush countersunk head sits flat with the surface
- Prevents unauthorized removal or tampering
- Offers a clean, professional appearance
- Ideal for public, commercial, or restricted access applications
- Enhanced security in permanent or semi-permanent fixtures
📐 Available Sizes
🔹 Metric Dimensions (Based on ISO 14581 / DIN 965 modified)
| Diameter | Pitch (mm) | Head Dia. (mm) | Head Height (mm) | Torx Size | Length Range (mm) |
|---|---|---|---|---|---|
| M2 | 0.4 | 3.8 – 4.0 | 1.2 – 1.4 | T6 | 4 – 16 |
| M3 | 0.5 | 5.5 – 6.0 | 1.6 – 2.0 | T8 | 6 – 30 |
| M4 | 0.7 | 7.5 – 8.0 | 2.2 – 2.4 | T10 | 8 – 40 |
| M5 | 0.8 | 9.0 – 10.0 | 2.5 – 3.0 | T15 | 10 – 50 |
| M6 | 1.0 | 11.0 – 12.0 | 3.0 – 3.5 | T20 | 12 – 60 |
UNC / UNF threads, imperial sizes (#4 to 1/4"), and custom lengths available on request.
🧱 Material Options
- Stainless Steel 304 – rust-proof, non-magnetic
- Stainless Steel 316 – marine-grade, chemical resistant
- Mild Steel (MS) – budget-friendly, zinc-coated
- Alloy Steel (HT 8.8) – high strength with black oxide
- Brass – decorative and non-sparking
- Nylon – limited sizes (light-duty, non-conductive)
🎨 Finish Options
| Finish Type | Appearance | Ideal For |
|---|---|---|
| Natural SS | Matte silver | General purpose, corrosion-free |
| Zinc Plated – White | Bright silver | Indoor applications |
| Zinc Plated – Yellow | Golden finish | Electrical panels, enclosures |
| Black Oxide | Matte black | Concealed or decorative use |
| Nickel / Chrome | Shiny silver | High-gloss finish |
| Geomet / Dacromet | Gray anti-rust coat | Automotive, marine environments |
🧰 Drive Type
- Security Pin Torx (Tamper-Proof 6-Lobe Drive with Center Pin)
- Must be installed and removed with special Torx security bits
- Optional Drive: Pin Hex / Snake Eye / 2-Hole Drive (on order)
🔧 Applications
- ATM & kiosk enclosures
- License plate & public signage
- Access control devices & electronics
- Server cabinets & network racks
- School furniture, safety panels
- Bathroom partitions, metro/train interiors
- Outdoor lighting and pole covers
📜 Standards & Certification
- Based on ISO 14581 / DIN 965 profile (modified for security)
- Complies with RoHS & REACH environmental standards
- Material Test Certificate (MTC), Salt Spray, Hardness Reports available
- ISO 9001:2015 Certified Quality Management
📦 Packaging
- 100 / 500 / 1000 pcs per box
- Moisture-resistant packaging with desiccants for SS
- OEM packing, barcode labeling, or private branding on request
- Bulk export packaging available
🏷️ Variants Available
- Countersunk with Washer
- Painted Heads (RAL Shade Matching)
- Matching SS Security Nuts
- Shear-Off Nut + CSK Pin Torx Screw Kits
- Bit Sets for Installation Teams
📞 Contact Neo Fasteners
📧 Email: neofasteners@yahoo.com
📞 Call/WhatsApp: +91-96328 07665
🌐 Websites:
🔗 neofasteners.com (Google Site)
📍 Location: Bengaluru, Karnataka, India