This is a six lobe Torx style drive screw with a large button style head. This is a six lobe Torx style drive screw with a large button style head.
Torx drive screws are becoming more and more popular in industry due to the higher torque possible with this drive system.
Resists impact, vibration, external contaminants and has excellent electrical insulation.
Often preferred in the automotive and components industries to other fastener styles.