Socket head screw

Metric socket cap, Class 12.9 alloy steel black oxide finish, Coarse (standard) thread, 1.75mm, 120mm

Socket cap diameter is measured on the outside of the threads.

Metric socket cap diameter

Metric socket cap, Class 12.9 alloy steel black oxide finish, Coarse (standard) thread, 1.75mm, 120mm

Diameter and Thread pitch