DIN 913 Hexagon socket set screws with flat point- AISI 316 -M5x 8

M5-0.8 DIN 913 is a type of set screw with a 5mm diameter of thread that generally used to secure an object within or against another object, normally not using a nut.
The most common examples are securing a pulley or gear to a shaft.
Set screws are usually headless (also called blind), meaning that the screw is fully threaded and has no head projecting past the major diameter of the screw thread