Metric Washer Dimensions

Please see below measurements relating to our most common metric washers

Metric Form A Washer DIN 125 Metric Form C Washer DIN125C
Size I/D mm O/D mm Thickness mm Size I/D mm O/D mm Thickness mm
M3 3.2 7 0.5
M4 4.3 9 0.8 M4 4.3 10 0.8
M5 5.3 10 1 M5 5.3 12.5 1
M6 6.4 12 1.6 M6 6.4 14 1.6
M8 8.4 16 1.6 M8 8.4 21 1.6
M10 10.5 20 2 M10 10.5 24 2
M12 13 24 2.5 M12 13 28 2.5
M14 15 28 2.5 M14 15 30 2.5
M16 17 30 3 M16 17 34 3
M18 19 34 3 M18 19 37 3
M20 21 37 3 M20 21 39 3
M22 23 39 3 M22 23 44 3
M24 25 44 4 M24 25 50 4
M27 28 50 4 M27 28 56 4
M30 31 56 4 M30 31 60 4
M33 34 60 5 M33 34 66 5
M36 37 66 5 M36 37 72 5
M39 40 72 6 M39 40 77 6
M42 43 78 7
M45 46 85 7
M48 50 92 8
M52 54 98 8
M56 58 105 9

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