Hex socket screw with integrated washer, P-2

A SEMS P-2 hex socket screw with integrated washer is a type of hex socket screw in which a spring washer is pre-assembled, preventing the washer from detaching.

This helps avoid assembly errors such as forgetting to install the washer and improves assembly efficiency.

It is also referred to as a SEMS cap screw.

※ Applicable standards: JIS B 1187, DIN 912

※ Note: The integrated washer is an international standard component matched with the screw body.