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.

Imperial Recess Button Head A2 Stainless Steel Pin Hex Machine Screw

Product Details

(Imperial Recess) Button Head Stainless Steel Pin Hex Machine Screw

(Imperial Recess) Hexagon socket screws manufactured with an internal pin.

This drive prevents removal with standard hexagon tools. Suitable for medium torque applications and is one the most difficult to remove without the matching driver.

  • Full range of AB Self Tapping and Machine Screws stocked in A2 Stainless Steel

Security Rating Explained

Size Length Material Driver Size Part No. Small Box Qty
M3 10mm A2 Stainless Steel H20 PHBM0310 100
M3 12mm A2 Stainless Steel H20 PHBM0312 100
M3 16mm A2 Stainless Steel H20 PHBM0316 100
M3 20mm A2 Stainless Steel H20 PHBM0320 100
M4 8mm A2 Stainless Steel H40 PHBM0408 100
M4 12mm A2 Stainless Steel H40 PHBM0412 100
M4 16mm A2 Stainless Steel H40 PHBM0416 100
M4 20mm A2 Stainless Steel H40 PHBM0420 100
M4 25mm A2 Stainless Steel H40 PHBM0425 100
M4 30mm A2 Stainless Steel H40 PHBM0430 100
M4 40mm A2 Stainless Steel H40 PHBM0440 100
M5 10mm A2 Stainless Steel H40 PHBM0510 100
M5 12mm A2 Stainless Steel H40 PHBM0512 100
M5 16mm A2 Stainless Steel H40 PHBM0516 100
M5 20mm A2 Stainless Steel H40 PHBM0520 100
M5 25mm A2 Stainless Steel H40 PHBM0525 100
M5 30mm A2 Stainless Steel H40 PHBM0530 100
M5 40mm A2 Stainless Steel H40 PHBM0540 100
M5 50mm A2 Stainless Steel H40 PHBM0550 100
M5 60mm A2 Stainless Steel H40 PHBM0560 100
M6 10mm A2 Stainless Steel H40 PHBM0610 100
M6 12mm A2 Stainless Steel H40 PHBM0612 100
M6 25mm A2 Stainless Steel H40 PHBM0625 100
M6 30mm A2 Stainless Steel H40 PHBM0630 100
M6 40mm A2 Stainless Steel H40 PHBM0640 100
M6 50mm A2 Stainless Steel H40 PHBM0650 100
M6 60mm A2 Stainless Steel H40 PHBM0660 100

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