Socket Set Screws-Cup Point
Socket set screws also become flush with the material they are screwed into. One of the main differences between socket set screws and regular socket cap screws is that set screws don't have a head. They are assembled with an Allen wrench or a hex bit.
ISO Metric Thread
Manufactured to ISO 4029 dimensions
Hardness: Rockwell C 45 -53
Heat Treated Alloy Steel per ASTM F912M