Self-tapping screws with cylindrical head and hexagon socket with central pin are provided with a continuous self-tapping thread along the entire shank, designed to allow direct fastening into sheet metal, thin profiles and light metal materials using a pre-drilled hole, without the need for prior tapping.
The thread geometry, typical of high-quality industrial fasteners, ensures excellent penetration capability and precise thread forming in the base material, providing high mechanical holding strength and resistance to loosening.
For optimal performance, it is essential to observe the recommended pre-drilling diameter; incorrect hole sizes may adversely affect tightening torque and fastening stability.
The cylindrical head allows for flush or slightly protruding installation, making it suitable for technical and mechanical applications where uniform load distribution is required.
The hexagon socket with central pin (hex socket security) drive offers two key advantages:
This solution is particularly valued in applications requiring security, reliability and controlled access, significantly reducing the risk of unauthorized disassembly.
Self-tapping screws with cylindrical head and hexagon socket with pin are available in the most commonly used premium fastener materials, including:
The screw length is measured from the tip to the underside of the head, in accordance with international standards.
They are widely used in:
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