ISO7049 DIN7981 pan head Self tapping screws
This International Standard specifies the characteristics of Cross recessed pan head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.
The minimum surface hardness after heat treatment
shall be 450 HV 0,3
If you are looking for flange head screws, please contact us for further information.
Self tapping screws torsional strength