Security Ratings Explained
Security Ratings

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.

Tri-Head Machine Screw

Product Details

Widely used vandal deterrent fixing.

This quick and easy to install security fastener is a favourite for applications in recess or channel due to its tall head design.

  • Stocked in A2 Stainless Steel

Click to view technical data.



Security Rating Explained

Size Length Material Driver Size Part No. Small Box Qty
M8 20mm A2 Stainless Steel TRI8 TRIM0820 100
M8 30mm A2 Stainless Steel TRI8 TRIM0830 100
M8 40mm A2 Stainless Steel TRI8 TRIM0840 100
M8 50mm A2 Stainless Steel TRI8 TRIM0850 100


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