Star drive pan head machine screw

Metric machine screws, Star drive pan head, Stainless steel 316 (A-4), Coarse (standard) thread

Machine screw diameter is measured on the outside of the threads.

Phillips pan head machine screw diameter

Metric machine screws, Star drive pan head, Stainless steel 316 (A-4), Coarse (standard) thread

Diameter and Thread pitch