Structure of the same shape as the theoretical dimension according to ASTM F543-07 Optimized axial alignment between screw and shaft helps to transmit force evenly as well as minimize screw wobbling. Optimized engagement between shaft and screw allows to pick up screw without an auxiliary device.
FEATURE BENEFITS
StarDrive Screw Head type
Unlike existing assembly types, there is minimum clearance, good center alignment with shaft.
Contact surface
Power transmission from shaft blades to screw is made by surface contact. And this mechanism minimizes damage at hexlobe and helps with easy screw removal.
Self-tapping flutes
Specially designed flutes help to decrease insertion torque as well as maintain hole center at the bone.