Security Ratings Explained
Security Ratings
Explained
X

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.

Round Head A2 Stainless Steel Clutch Head Self Tapper

Product Details

Round Head A2 Stainless Steel Clutch Head Self Tappers

The original one-way security drive.

The special ridged design of this drive means that it can only operate in a clockwise motion. Installed using standard slotted screwdriver - no specialist tools required.

  • Also Stocked in; Case Hardened Steel Zinc Plated (CR-3) Woodscrews & A2 Stainless Steel Metric Machine Screws

Click to view technical data.

 

Security Rating Explained

Gauge Length Material Ref Small Box Qty
No.4 (2.9mm) 1/2" (13mm) A2 Stainless Steel CHRS04D 100
No. 4 (2.9mm) 3/4" (19mm) A2 Stainless Steel CHRS04F 100
No.6 (3.5mm) 1/2" (13mm) A2 Stainless Steel CHRS06D 100
No.6 (3.5mm) 3/4" (19mm) A2 Stainless Steel CHRS06F 100
No.6 (3.5mm) 1" (25mm) A2 Stainless Steel CHRS06G 100
No. 6 (3.5mm) 1-1/4" (32mm) A2 Stainless Steel CHRS06H 100
No.8 (4.2mm) 1/2" (13mm) A2 Stainless Steel CHRS08D 100
No.8 (4.2mm) 3/4" (19mm) A2 Stainless Steel CHRS08F 100
No.8 (4.2mm) 1" (25mm) A2 Stainless Steel CHRS08G 100
No.8 (4.2mm) 1-1/4" (32mm) A2 Stainless Steel CHRS08H 100
No.8 (4.2mm) 1-1/2" (38mm) A2 Stainless Steel CHRS08I 100
No.8 (4.2mm) 2" (50mm) A2 Stainless Steel CHRS08J 100
No.10 (4.8mm) 1/2" (13mm) A2 Stainless Steel CHRS10D 100
No.10 (4.8mm) 3/4" (19mm) A2 Stainless Steel CHRS10F 100
No.10 (4.8mm) 1" (25mm) A2 Stainless Steel CHRS10G 100
No.10 (4.8mm) 1-1/4" (32mm) A2 Stainless Steel CHRS10H 100
No.10 (4.8mm) 1-1/2" (38mm) A2 Stainless Steel CHRS10I 100
No.10 (4.8mm) 2" (50mm) A2 Stainless Steel CHRS10J 100
No. 12 (5.5mm) 1" (25mm) A2 Stainless Steel CHRS12G 100
No. 12 (5.5mm) 1-1/2" (38mm) A2 Stainless Steel CHRS12I 100
No.14 (6.3mm) 1/2" (13mm) A2 Stainless Steel CHRS14D 100
No.14 (6.3mm) 3/4" (19mm) A2 Stainless Steel CHRS14F 100
No.14 (6.3mm) 1" (25mm) A2 Stainless Steel CHRS14G 100
No.14 (6.3mm) 1-1/2" (38mm) A2 Stainless Steel CHRS14I 100
No.14 (6.3mm) 2" (50mm) A2 Stainless Steel CHRS14J 100

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