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.

Kinmar® Permanent

The ultimate high security patented one-way nut.

This patented permanent nut requires a matching driver socket for installation giving you guaranteed torque levels and can be re-torqued if required. Not governed by a shear point and leaving no unplated surfaces, it leaves a clean smart finish.

  • Stocked in Case Hardened Steel Zinc Plated (CR-3) and Geomet®, also stocked in A2 Stainless Steel
  • Kinmar® Permanent drive is also stocked in bolt form M8 x 25mm / M8 x 40mm
  • Other materials and finishes available to order subject to minimum order quantities

Watch the installation video:

 

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