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.

Raised Countersunk 6-Lobe Pin Machine Screw

Product Details

Raised Countersunk A2 Stainless Steel 6-Lobe Pin Machine Screw.

6-Lobe recess manufactured with internal pin.

Popular security drive for high torque applications. Quickly and easily installed and removed using matching tooling.

  • Full range of AB Self Tapping and Metric Machine Screws stocked in A2 Stainless Steel
  • We also stock Barrel Nuts and Self Drilling Screws using the 6-Lobe Pin drive



Security Rating Explained

Size Length Material Driver Size Part No. Small Box Qty
M3.5 12mm A2 Stainless Steel T10 RTRM3512 100
M3.5 20mm A2 Stainless Steel T10 RTRM3520 100
M3.5 25mm A2 Stainless Steel T10 RTRM3525 100
M3.5 30mm A2 Stainless Steel T10 RTRM3530 100
M3.5 35mm A2 Stainless Steel T10 RTRM3535 100
M3.5 40mm A2 Stainless Steel T10 RTRM3540 100
M3.5 50mm A2 Stainless Steel T10 RTRM3550 100
M3.5 75mm A2 Stainless Steel T10 RTRM3575 100


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