The set screws is a kind of screws used to fix the relative position of the parts, so do you know what the purpose of the set screws is?
The purpose of the set screws is as follows:
When in use, screws the set screws into the screws hole of the part to be fixed, and press the end of the screws on the surface of another part, even if the former part is fixed on the latter part.

Slotted and hexagon socket set screws are used on parts where the nail head is not allowed to be exposed, and square head set screws are suitable for parts where the nail head is allowed to be exposed. The compression force of the screws is smaller than that of the slotted screws, the larger of the square head screws, and the center of the hexagon socket head screws.
Cone end screws are suitable for parts with low strength; non-pointed cone end screws are suitable for parts with pits on the pressing surface to increase the ability to transmit loads; flat end screws and concave end screws are suitable for hardness On larger or frequently repositioned parts; long cylindrical end screws are suitable for tubular shafts. Product specifications mainly include GB71, GB73, GB74, GB75, GB77, GB78, GB79, GB80 and so on.
A set screws is a screws used to fix the relative position of the parts. The purpose of the set screws: When in use, screws the set screws into the screws hole of the part to be fixed.