When you need a hexagon socket cap screw to give you a smooth contour and surface, then the Holo-Krome screw is an excellent choice.

These Holo-Krome metric socket cap screws are stronger than conventional screws of the same size as they are Thermo Forged?, meaning that you use fewer to complete the job.
Thermos forged meaning 15 to18% increased resistance to fatigue failure
High tensile alloy steel means that they have better mechanical properties than carbon steel
Dimensional Control
Precision Threads