|Size||M3 - M10 WITH LENGTH UPTO 50MM|
|Head Shape||Button Head|
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.Features: