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.

Countersunk 2-Hole Machine Screw

Product Details

Countersunk A2 Stainless Steel 2-Hole Machine Screw

Popular aesthetically pleasing drive for any two-way application.

This drive system, sometimes known as Snake Eye® or Pig Nose is designed for low to medium torque applications. It has 2 holes drilled into the head which requires a unique 2-pin matching driver to install and remove it.

  • Full range of Self Tapping and Metric Machine Screws stocked in A2 Stainless Steel
  • Other styles of fasteners available in the 2-Hole drive system: Barrel Nuts, Male & Female Bolts, Grub Screws, Glass Screws, Large Disc Head Screws?

 

Security Rating Explained

Size Length Material Driver Size Part No. Small Box Qty
M3 6mm A2 Stainless Steel TH3 THCM0306 100
M3 8mm A2 Stainless Steel TH3 THCM0308 100
M3 10mm A2 Stainless Steel TH3 THCM0310 100
M3 12mm A2 Stainless Steel TH3 THCM0312 100
M3 16mm A2 Stainless Steel TH3 THCM0316 100
M3 20mm A2 Stainless Steel TH3 THCM0320 100
M3 25mm A2 Stainless Steel TH3 THCM0325 100
M3 30mm A2 Stainless Steel TH3 THCM0330 100
M3 35mm A2 Stainless Steel TH3 THCM0335 100
M4 10mm A2 Stainless Steel TH5 THCM0410 100
M4 12mm A2 Stainless Steel TH5 THCM0412 100
M4 16mm A2 Stainless Steel TH5 THCM0416 100
M4 20mm A2 Stainless Steel TH5 THCM0420 100
M4 25mm A2 Stainless Steel TH5 THCM0425 100
M4 30mm A2 Stainless Steel TH5 THCM0430 100
M4 35mm A2 Stainless Steel TH5 THCM0435 100
M4 40mm A2 Stainless Steel TH5 THCM0440 100
M5 12mm A2 Stainless Steel TH6 THCM0512 100
M5 16mm A2 Stainless Steel TH6 THCM0516 100
M5 20mm A2 Stainless Steel TH6 THCM0520 100
M5 25mm A2 Stainless Steel TH6 THCM0525 100
M5 30mm A2 Stainless Steel TH6 THCM0530 100
M5 35mm A2 Stainless Steel TH6 THCM0535 100
M5 40mm A2 Stainless Steel TH6 THCM0540 100
M6 12mm A2 Stainless Steel TH8 THCM0612 100
M6 16mm A2 Stainless Steel TH8 THCM0616 100
M6 20mm A2 Stainless Steel TH8 THCM0620 100
M6 25mm A2 Stainless Steel TH8 THCM0625 100
M6 30mm A2 Stainless Steel TH8 THCM0630 100
M6 40mm A2 Stainless Steel TH8 THCM0640 100

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