Type C - Fixing from the rear.
GN129.2 Hinge, Steel, Zinc Plated, Anti-Tamper
These steel hinges, GN 129.2 are used for doors which sit flush with the frame on the outside. Once assembled, they cannot be unhinged.
With the fixing from the inside, they are especially suitable for doors and trap doors which must not be detachable from the outside, acting as an anti-tamper device.
Hinge - Steel ST zinc plated, blue passivated.
Pin - Brass, nickel plated.
Washer - Brass, nickel plated.
Hexagon nut ISO 4032 - Steel, zinc plated, blue passivated.
Serrated washer DIN 6797, for securing screws - zinc plated, blue passivated.