M8 x 80mm T40 Metric Security Torx Countersunk Screws - Stainless Steel (A2) Description
The M8 x 80mm T40 Metric Security Torx Countersunk Screws - Stainless Steel (A2) has the following features:
- Countersunk Angle (CA): 90 Degrees
- Natural Finish
- Head Diameter (D): 16 mm
- Head Diameter (D) Tolerance: +0/-0.43 mm
- Head Length (H): 5 mm
- Length (L): 80 mm
- Stainless Steel - (A2)
- Stainless Steel Material Family
- Security Torx Drive Size: T40
- System of Measurement: Metric
- Thread Pitch: 1.25 mm
- Thread Size: M8 (8 mm)
Discover more about the Metric Security Torx Countersunk Screws range.
Security Torx countersunk screws are precision-engineered machine screws featuring a countersunk head, a tamper-resistant security Torx drive, and machined threads. These components are widely used in environments where both a flush finish and resistance to unauthorised removal are essential.
Commonly found in public infrastructure such as playground equipment and access control panels, these screws offer a blend of security, reliability and clean aesthetics.
How Security Torx Countersunk Screws Work
Designed for secure fastening, these screws utilise a security Torx drive, which requires a matching tamper-resistant security Torx bit. This drive type features a pin in the centre that prevents standard Torx tools from engaging, making unauthorised removal significantly more difficult.
The countersunk head sits flush with the surface, helping reduce snag points and maintain a streamlined appearance. Combined with machine threads, they deliver strong, vibration-resistant fastening in compatible tapped holes or with matching security nuts.
Materials Security Torx Countersunk Screws Are Made From
Accu’s selection of security Torx countersunk fasteners are manufactured from:
- Steel – A strong, cost-effective choice ideal for internal applications.
- Stainless Steel (A2) – Offers superior corrosion resistance, making it suitable for outdoor environments.
Sizes and Types of Security Torx Countersunk Screws Available
Accu offers a wide selection of security Torx countersunk screws, including:
- Thread Sizes: M3 (3mm) to M12 (12mm)
- Lengths: 6mm to 100mm
- Finishes: AccuBlack, a matte black finish for reduced reflections and enhanced aesthetics. AccuLock, a pre-applied thread locking patch for enhanced vibration resistance. Zinc plating for added corrosion protection in moderate environments.
FAQs
Q: What makes a Security Torx screw tamper-resistant?
A: The central pin in the security Torx recess prevents engagement with standard Torx drivers, offering a higher level of tamper resistance.
Q: Where are Security Torx Countersunk Screws most commonly used?
These screws are ideal for securing public fixtures like benches, access panels and playground equipment where theft or tampering is a concern.
Q: Can security Torx countersunk screws be reused?
A: Yes, provided the head, drive and threads are undamaged and the correct tool is used, they can be reused in non-critical applications.
Q: Are these screws suitable for outdoor use?
A: Stainless steel - (A2) versions and those with zinc plating offer good corrosion resistance, making them suitable for most outdoor applications.
