DIN 916 Set Screw, Cup Point, A4

Cup/Socket point.
Property class A4 ´0`.
Metric thread.
Acid-resistant stainless steel A4.
NOTE! Set screws are designed for compressive loads and are not suitable for tensile or shear loads.

Set screws, grub screws.
These products are mainly used on shafts to lock, for example, a bearing onto a shaft or into a bearing housing, and as an adjustment screw, for example, to limit movement.
A set screw is a so-called "headless" screw, where the drive recess is sunk into one end of the product.
Several different types are available (flat, cup, cone, dog point) depending on the application.