DIN 557

Square Nuts



Thread Size
d
M5 M6 M8 M10
P Pitch 0.8 1 1.25 1.5
dw min 6.7 8.7 11.5 14.5
e max 11.3 14.1 18.4 22.6
min 9.93 12.53 16.34 20.24
m max=nominal size 4 5 6.5 8
min 3.52 4.52 5.92 7.42
m1 min 2.5 3.2 4.1 5.2
s max=nominal size 8 10 13 16
min 7.64 9.64 12.57 15.57
per 1000 units ≈ kg 1.31 2.77 5.5 10.7

Thread Size
d
M10
SW 16
M12 M12
SW 18
M16
P Pitch 1.5 1.75 1.75 2
dw min 15.5 16.5 17.2 22
e max 24 25.4 26.9 33.9
min 21.54 22.84 24.02 30.11
m max=nominal size 8 10 10 l3
min 7.42 9.42 9.42 12.3
m1 min 5.2 6.6 6.6 8.6
s max=nominal size 17 18 19 24
min 16.57 17.57 18.48 23.16
per 1000 units ≈ kg 13 16.3 19.1 38.2



All information is strictly informative