Countersunk screw ISO 10642 / DIN 7991, M 4x12, head 8 mm, hex socket 2.5 mm, stainless steel A2

This screw to ISO 10642 and DIN 7991 sits recessed in the hole with its countersunk head of 8 mm diameter and 2.5 mm height and leaves no edge in the way. Thread M 4, length 12 mm and socket width 2.5 mm govern the choice. The material is stainless steel A2.

Benefits

• head diameter 8 mm and head height 2.5 mm to ISO 10642, matching the standard counterbore
• hexagon socket with 2.5 mm width across flats for a high tightening torque in a tight space
• thread M 4 over 12 mm of shank length
• thread up to approximately the head, the full depth of engagement can be used
• stainless steel A2 withstands moisture and cleaning agents
• a flush finish, at 2.5 mm head height no edge is left standing above the joint

Applications

It is used in machine and plant engineering, on panels, covers and cover plates whose surface must stay flat.

Standards and conformity

The screw is made to ISO 10642 and DIN 7991. The material is stated as stainless steel A2 to ISO 3506.