DIN 7981 C Pan head tapping screws with cross recess H and Z, Form C

Equivalent Standards

DIN 7981 C

Dimensions for DIN 7981 C Pan head tapping screws with cross recess H and Z, Form C

Thread size p a dk k r rf cross recess Type H Type Z Y max
m Penetration depth m Penetration depth
max nominal=max min nominal=max min max approx No. approx min max approx min max Type C Type F
ST 2.2 0.8 0.8 4.2 3.9 1.8 1.55 0.3 3.4 1 2.6 0.86 1.32 2.4 1.1 1.35 2 1.6
ST 2.9 1.1 1.1 5.6 5.3 2.2 1.95 0.4 4.4 1 3 1.35 1.8 2.9 1.58 1.83 2.6 2.1
ST 3.5 1.3 1.3 6.9 6.54 2.6 2.35 0.5 5.4 2 4.2 1.4 2.03 3.9 1.47 1.93 3.2 2.5
ST 3.9 1.3 1.3 7.5 7.14 2.8 2.55 0.5 5.8 2 4.4 1.63 2.26 4.1 1.7 2.16 3.5 2.7
ST 4.2 1.4 1.4 8.2 7.84 3.05 2.75 0.6 6.2 2 4.6 1.8 2.46 4.3 1.88 2.34 3.7 2.8
ST 4.8 1.6 1.6 9.5 9.14 3.55 3.25 0.7 7.2 2 5 2.26 2.87 4.7 2.28 2.74 4.3 3.2
ST 5.5 1.8 1.8 10.8 10.37 3.95 3.65 0.8 8.2 3 6.5 2.49 3.15 6.2 2.51 2.97 5 3.6
ST 6.3 1.8 1.8 12.5 12.07 4.55 4.25 0.9 9.5 3 7.1 3 3.66 6.7 3.02 3.48 6 3.6