Security Screws

What are security screws?

Security screws are specialist fasteners designed to resist tampering and removal using standard tools. They feature unique drive designs that require a matching tool, making unauthorised removal difficult or impossible.

Two main types are available:

• Reusable security screws – Removable using the correct security tool where maintenance access is required
• Permanent one-way screws – Designed for single-installation applications where removal is not intended

This allows businesses to select the appropriate balance between accessibility and tamper resistance.

What types of security screws are available?

We supply machine-thread, self-tapping and self drilling and a wide range of security screws.

• Machine-thread security screws are used with pre-tapped holes or paired with a security nut for a secure joint.
• Self-tapping security screws create their own thread in softer materials including plastics, aluminium, and wood, providing strong, tamper-resistant fixings.
• Self-drilling security screws incorporate a drill-point tip that allows the screw to drill through the material as it is installed, removing the need for a pre-drilled pilot hole in suitable applications.

Alongside security screws, we also supply security bolts and nuts.

What security drive types are available?

Fastenright supplies security screws with a wide range of tamper-resistant drive types to suit different security requirements. Common options include:

• Pin Hex – Suitable for equipment requiring controlled maintenance access using a matching driver.
• Clutch Head – Designed for permanent fastening where removal is discouraged after installation.
• Two Hole – Used where specialist tooling is required to restrict unauthorised removal.
• One Way – Suitable for permanent installations where the screw is intended to be installed once and not removed.
• Pin Torx – (Pin TX) – This is the most commonly and widely available security drive

Selecting the appropriate drive type depends on the required balance between security, maintenance access, and the operating environment.

Alongside security screws, Fastenright also supplies other tamper-resistant security fasteners, including Shear Nuts, for applications requiring permanent security fixings.

What materials and finishes are available?

Fastenright supplies security screws in a wide range of materials and finishes to suit different operating environments and application requirements, including: Stainless Steel (A2 304 & A4 316), Steel, Titanium, Aluminium.

Standard and specialist materials are available, with bespoke material specifications and finishes supplied to order for project-specific applications.

What sizes are available?

Our security screws are stocked in common metric sizes including M4, M5, and M6, with sizes from M2 to M16 available and larger diameters supplied on request. Imperial threads are also available.

Alongside standard stock, Fastenright can supply bespoke security screws and bulk quantities to support production, OEM, and project-based requirements.

Each Fastenright security screw is manufactured to deliver exceptional strength, precision, and resistance to tampering. Designed for both permanent and reusable applications, they’re ideal for protecting valuable assets and sensitive equipment across industrial, commercial, and public environments.

If you need help selecting the right security screw or require a non-standard specification, our technical team can advise on the best fastening solution for your application.

How do security screws help prevent vandalism, theft and tampering?

Security screws use specialised drive designs that cannot be removed using conventional screwdrivers or standard tools. This helps protect installations against vandalism, theft, and unauthorised interference.

Typical applications include:

• Access panels
• Signage
• Electronic enclosures
• Furniture
• Public infrastructure
• Commercial equipment

Why are security screw heads difficult to remove with standard tools?

Security screw heads are designed with unique drive patterns that cannot be engaged using conventional tools. Instead, they require a specifically matched driver or bit to install or remove them. This specialised interface helps ensure that only authorised personnel with the correct tooling can access the fastening.

Why choose Fastenright security screws?

Fastenright has supplied security fasteners for over 30 years, supporting manufacturers, OEMs, installers, and engineering businesses throughout the UK and worldwide.

Alongside our standard range of security screws, we manufacture bespoke security fasteners to customer drawings, including:

• Non-standard thread sizes
• Metric and imperial threads
• Special materials and finishes
• Bulk production quantities
• Custom security fastening solutions

Whether you require a standard stock product or a bespoke security screw for a specialist application, our technical team can help specify the right fastening solution. Contact us today.