As the name states, this has an internal pin within the hexagonal socket which requires a special insert bit or key wrench to insert & remove. This reduces the risk of tampering by thieves or intruders undoing the screws.
Due to its 2-way reusable fixing capability, this is a useful security screw where maintenance is required.
Window grills, light fixtures in trains and buses, electronic equipment, defence equipment, prisons, hospitals, public signs, playgrounds, control panels, security cameras.
Material : Stainless Steel AISI 304.
Size Range : M3 to M10 up to 80mm length.