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Stainless steel DIN 7991 Security TX (PIN) countersunk screws with a tamper-resistant Torx drive and flush flat head. Designed for anti-theft, vandal-proof and high-security applications. |
DIN 7991 Security TX (PIN) countersunk screws combine a flush-fitting flat head with a tamper-resistant Torx drive featuring a central security pin. This “TX-PIN” or “Tamper-Proof Torx” design prevents the use of regular Torx bits, offering increased protection against unauthorized removal, theft or vandalism.
The flat countersunk head ensures a clean, fully flush finish after installation. Stainless steel versions (A2 or A4) offer excellent corrosion resistance, making them suitable for outdoor, industrial, public, marine and high-security environments.
Typical applications:
- public installations, signage, lighting and infrastructure
- tamper-proof covers, panels and housings
- security equipment and restricted access areas
- outdoor fittings, gates, barriers, fences
- electronics, automation, industrial machinery
- marine and corrosive environments (A4)
Key advantages:
- security Torx drive (TX-PIN) — prevents unauthorized removal
- flush countersunk head for clean and safe surface finish
- stainless steel A2/A4 for corrosion resistance and durability
- ideal for high-security, anti-theft and anti-vandal applications
- excellent torque transfer with secure locking