Knurled Cup Point--Used for quick, permanent location of gears, collars and pulleys on shafts.  Resists severe vibration.  On all set screws over 6mm the cup is counter-bored to provide maximum holding power.

Socket Set Screws - Other Points

Data Sheet 21

Used for permanent location of parts.  Deep penetration gives highest axial and torsional holding power. UNBRAKO cone point set screws are ideally suited for use as pivots, and for applications where fine adjustments are necessary.

Cone Point

Used where parts must be frequently re-set, as it causes little or no damage to the part it bears against.  Can be used against hardened shafts (usually with ground flat for better contact) and as adjusting screw. Preferred for thin wall thickness and on soft plugs.

Flat Point

Used for permanent  location of one part to another.  The point is usually spotted in a hole drilled in a shaft or on a flat surfaced milled on the shaft

Dog Point

Used for frequent adjustment without deformation of part it bears against, also for seating against an angular surface. Circular U-grooves or axial V-grooves sometimes put in shaft to permit rotational or longitudinal adjustment.

Oval Point

Knurled Cup Point