Back (Fe-Base)

Torx screw A2

Chemical designationTorx-Schraube A2
EtchingV2A-Beize @ 70 °C

Austenitic stainless steel with deformation martensite in the heavily deformed head (310 HV0.3 compared to 150 HV0.3 in shaft center) and thread. Material overlappings in the groove of the thread.