Type A - Semi-spherical
Type B - Pointed nose
GN913.2 Grub Screw, Steel, Blackened, with Pointed or Spherical Pad
Grub screws with hardened pointed nose (Type B) offer an alternative form of finish. Furthermore they can be used as a locator for a drill.
Steel - Tensile strength class 5.8, blackened
Thrust pivot - hardened