Countersunk screw ISO 10642 / DIN 7991, M 5x25, head 10 mm, hex socket 3 mm, steel 8.8, plain

For flush joints this version to ISO 10642 and DIN 7991 carries thread M 5 over 25 mm of length. The countersunk head is 10 mm in diameter and 3.1 mm high, and it is turned through the hexagon socket with 3 mm width across flats. The material is plain steel (black), property class 8.8.

Benefits

• head diameter 10 mm and head height 3.1 mm to ISO 10642, matching the standard counterbore
• hexagon socket with 3 mm width across flats for a high tightening torque in a tight space
• thread M 5 over 25 mm of shank length
• thread up to approximately the head, the full depth of engagement can be used
• property class 8.8 for general mechanical engineering
• a flush finish, at 3.1 mm head height no edge is left standing above the joint

Applications

The screw is called for in jig and tool making, on guide strips and wherever something still has to slide or rest on the bolted surface.

Standards and conformity

The screw is made to ISO 10642 and DIN 7991. The material is stated as property class 8.8.