DIN 7973 – 1990 SLOTTED RAISED COUNTERSUNK HEAD TAPPING SCREW SIZE SPECIFICATION 2020/12/15 2015 DIN 7973 – 1990 SLOTTED RAISED COUNTERSUNK HEAD TAPPING SCREW SIZE SPECIFICATION Screw Threadd ST2.2 ST2.9 ST3.5 (ST3.9) ST4.2 ST4.8 ST5.5 ST6.3 P Pitch... Detail