Security Ratings Explained
Security Ratings
Explained
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Hafren Security Ratings

Security Level 1

Entry Level
Fasteners offer protection from vandalism and opportunistic crime. Drivers can be purchased by the general public.

Security Level 2

Enhanced Security
Fasteners are less Common and less Recognizable. Driver Tooling is non-standard and Harder for the general public to buy.

Security Level 3

Medium Security
Rarer (less well-known) products. Supply of driver tooling is controlled, less readily available to buy, enhancing the security of the assembly.

Security Level 4

High Security
Either 1-way permanent fixing, or rare Hafren patented high security products requiring specialist tooling to remove (only available from Hafren approved distributors).

Security Level 5

Maximum Security
Highest security available. Products are either 1-way permanent fixings, or require bespoke exclusive, custom made driver tools to remove.

Flange Head Zinc Plated System Zero® Machine Screw

Product Details

High torque security screws with incorporated flange head design for enhanced load distribution

System Zero® is a Level 3 'Medium Security' fastener, with the ability to be installed and removed using the matching driver tool. The unique head design, in combination with the driver, gives a high torque transmission which in turn generates high clamp loads.

The innovative external non-slip drive head features indentations that have been crafted to ensure optimal grip when used with the matching security tooling, facilitating seamless high torque fastening and removal.

?The incorporated flange design efficiently spreads the load when attaching plastic components, enhancing stability and durability.

  • Full range of Self Tapping and Metric Machine Screws
  • Stocked in A2 Stainless Steel or Zinc Plated Steel

Security Rating Explained

Diameter Length Material Finish Driver Size Part No. Small Box Qty
M2.5 6mm Mild Steel Zinc Plated SZ3 SZM2506-Z 100
M2.5 12mm Mild Steel Zinc Plated SZ3 SZM2512-Z 100
M3 6mm Mild Steel Zinc Plated SZ3 SZM0306-Z 100
M3 12mm Mild Steel Zinc Plated SZ3 SZM0312-Z 100
M3.5 6mm Mild Steel Zinc Plated SZ4 SZM3506-Z 100
M3.5 12mm Mild Steel Zinc Plated SZ4 SZM3512-Z 100
M4 6mm Mild Steel Zinc Plated SZ4 SZM0406-Z 100
M4 12mm Mild Steel Zinc Plated SZ4 SZM0412-Z 100
M4 20mm Mild Steel Zinc Plated SZ4 SZM0420-Z 100
M4 25mm Mild Steel Zinc Plated SZ4 SZM0425-Z 100
M5 6mm Mild Steel Zinc Plated SZ5 SZM0506-Z 100
M5 12mm Mild Steel Zinc Plated SZ5 SZM0512-Z 100
M5 20mm Mild Steel Zinc Plated SZ5 SZM0520-Z 100
M5 25mm Mild Steel Zinc Plated SZ5 SZM0525-Z 100
M5 30mm Mild Steel Zinc Plated SZ5 SZM0530-Z 100
M5 40mm Mild Steel Zinc Plated SZ5 SZM0540-Z 100
M6 10mm Mild Steel Zinc Plated SZ6 SZM0610-Z 100
M6 16mm Mild Steel Zinc Plated SZ6 SZM0616-Z 100
M6 20mm Mild Steel Zinc Plated SZ6 SZM0620-Z 100
M6 25mm Mild Steel Zinc Plated SZ6 SZM0625-Z 100
M6 30mm Mild Steel Zinc Plated SZ6 SZM0630-Z 100
M6 40mm Mild Steel Zinc Plated SZ6 SZM0640-Z 100

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