Countersunk screw ISO 10642 / DIN 7991, M 8x25, head 16 mm, hex socket 5 mm, steel 10.9, zinc-plated

The 90 degree countersunk head of this screw to ISO 10642 and DIN 7991 sinks 5.0 mm into the counterbore and finishes flush. It is made with thread M 8 and 25 mm length, the hexagon socket measures 5 mm, the head 16 mm. The data sheet names zinc-plated steel, property class 10.9 as the material.

Benefits

• head diameter 16 mm and head height 5.0 mm to ISO 10642, matching the standard counterbore
• hexagon socket with 5 mm width across flats for a high tightening torque in a tight space
• thread M 8 over 25 mm of shank length
• thread up to approximately the head, the full depth of engagement can be used
• property class 10.9 with a zinc-plated surface
• a flush finish, at 5.0 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 property class 10.9.