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  4. DIN 6798A External Tooth Washers

DIN 6798A External Tooth Washers

DIN 6798 A Equivalent

UNI 8842 CSN 21745


DIN 6798A External Tooth Washers
Serrated Lock Washers, Forma I – External

DIN 6798 A Dimensions

Nominal size d1 d2 s1 Min. number of teeth Weight kg/1000pcs For thread
Nominal size – Min. Max. Nominal size – max. Min.
1.7 1.7 1.84 3.6 3.3 0.3 9 0.02 M1.6
2.2 2.2 2.34 4.5 4.2 0.3 9 0.03 M2
2.7 2.7 2.84 5.5 5.2 0.4 9 0.045 M2.5
3.2 3.2 3.38 6 5.7 0.4 9 0.06 M3
3.7 3.7 3.88 7 6.64 0.5 10 0.11 M3.5
4.3 4.3 4.48 8 7.64 0.5 11 0.14 M4
5.3 5.3 5.48 10 9.64 0.6 11 0.26 M5
6.4 6.4 6.62 11 10.57 0.7 12 0.36 M6
7.4 7.4 7.62 12.5 12.07 0.8 14 0.5 M7
8.4 8.4 8.62 15 14.57 0.8 14 0.8 M8
10.5 10.5 10.77 18 17.57 0.9 16 1.25 M10
13 13 13.27 20.5 19.98 1 16 1.6 M12
15 15 15.27 24 23.48 1 18 2.3 M14
17 17 17.27 26 25.48 1.2 18 2.9 M16
19 19 19.33 30 29.48 1.4 18 5 M18
21 21 21.33 33 32.38 1.4 20 6 M20
23 23 23.33 36 35.38 1.5 20 7.5 M22
25 25 25.33 38 37.38 1.5 20 8 M24
28 28 28.33 44 43.38 1.6 22 12 M27
31 31 31.39 48 47.38 1.6 22 14 M30