A hardened, unique shape makes this nut more resilient to attack.
This patented product requires only a standard spanner for installation. Its unique angle shape makes it extremely difficult for vandals to remove it.
Manufactured and stocked in Zinc Plated (CR-3) Steel.
Type 1 (square shape) M6, M8 & M10.
Type 2 (hexagon shape) M12
Need further product information? Click here to download the Hafren Security Fasteners handbook.