Countersunk screw ISO 10642 / DIN 7991, M 3x8, head 6 mm, hex socket 2 mm, stainless steel A4

This screw to ISO 10642 and DIN 7991 sits recessed in the hole with its countersunk head of 6 mm diameter and 1.9 mm height and leaves no edge in the way. Thread M 3, length 8 mm and socket width 2 mm govern the choice. The material is stainless steel A4.

Benefits

• head diameter 6 mm and head height 1.9 mm to ISO 10642, matching the standard counterbore
• hexagon socket with 2 mm width across flats for a high tightening torque in a tight space
• thread M 3 over 8 mm of shank length
• thread up to approximately the head, the full depth of engagement can be used
• stainless steel A4 is also rated for chloride-bearing and marine environments
• a flush finish, at 1.9 mm head height no edge is left standing above the joint

Applications

It finds its place in equipment and apparatus construction, on housings and front plates where a protruding head would be in the way.

Standards and conformity

The screw is made to ISO 10642 and DIN 7991. The material is stated as stainless steel A4 to ISO 3506.