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  5. DIN 7982C Hexalobular Countersunk AB Self Tapping Screws

DIN 7982C Hexalobular Countersunk AB Self Tapping Screws

DIN 7982C Equivalents

ISO 7050 UNI 6955 CSN 21237

DIN 7982C Hexalobular Countersunk AB Self Tapping Screws
Cross Recessed Countersunk Head Tapping Screws, Form C

DIN 7982 C Dimensions

Thread size P a dk k r Cross recess Type H Type Z y
m Penetration deptd m Penetration deptd max.
max. nominal=max. min. approx. max. No. approx. min. max. approx. min. max. Type C Type F
ST2.2 0.8 0.8 4.3 4 1.3 0.8 1 2.5 1.02 1.32 2.4 1.1 1.35 2 1.6
ST2.9 1.1 1.1 5.5 5.2 1.7 1.1 1 3 1.4 1.7 2.9 1.48 1.73 2.6 2.1
ST3.5 1.3 1.3 6.8 6.44 2.1 1.4 2 4.2 1.62 2.12 3.9 1.6 2.06 3.2 2.5
(ST3.9) 1.3 1.3 7.5 7.14 2.3 1.5 2 4.6 2.03 2.53 4.1 1.85 2.31 3.5 2.7
ST4.2 1.4 1.4 8.1 7.74 2.5 1.6 2 4.7 2.11 2.62 4.3 2.05 2.51 3.7 2.8
ST4.8 1.6 1.6 9.5 9.14 3 1.9 2 5.1 2.59 3.1 4.7 2.64 3.1 4.3 3.2
ST5.5 1.8 1.8 10.8 10.37 3.4 2.1 3 6.8 2.95 3.53 6.2 2.72 3.18 5 3.6
ST6.3 1.8 1.8 12.4 11.97 3.8 2.4 3 7.1 3.33 3.91 6.7 3.38 3.84 6 3.6
l Type C Type F Approximate mass (7.85 kg/dm3). per 1000
units in kg
nominal min. max. min. max.
6.5 5.7 7.3 5.7 6.5 0.14 0.242            
9.5 8.7 10.3 8.7 9.5 0.2 0.35 0.548 0.658 0.775 1.1    
13 12.2 13.8 12.2 13 0.27 0.476 0.722 0.88 1.02 1.45 2.11 2.53
16 15.2 16.8 15.2 16 0.33 0.584 0.871 1.07 1.23 1.75 2.49 3.07
19 18.2 19.8 18.2 19   0.692 1.02 1.26 1.44 2.05 2.87 3.61
22 21.2 22.8 20.7 22     1.17 1.45 1.65 2.35 3.26 4.15
25 24.2 25.8 23.7 25     1.32 1.64 1.86 2.65 3.65 4.69
32 30.7 33.3 30.7 32         2.35 3.35 4.56 5.95
38 36.7 39.3 36.7 38             5.34 7.03
38 36.7 39.3 36.7 38           4.52 6.45 8.82